Overview

We have a group of Macs that mount SMB shares over 10 GbE with jumbo frames (MTU 9000). Since late June, they have been kernel panicking several times a day with the same assertion: panic(cpu N caller ...): assertion failed: m->m_flags & M_PKTHDR, file: .../xnu/bsd/kern/uipc_mbuf.c, line: 4839 @uipc_socket.c:8260 Panicked thread: dlil_input_en0 Last started kext: com.apple.filesystems.smbfs 6.0.1 Environment Clients: Mac Studio (M1 Max and M1 Ultra) and Mac Pro (2019, Intel with T2), using the built-in 10GBASE-T at MTU 9000 macOS 26.5.1 (25F80), 26.6.2 (25G83) and 26.7 (25G229); it panics on all three Servers: Samba-based NAS, SMB 3.1.1, signing on, encryption off Filed as FB24912731 What we've found It still panics with our third-party EDR fully uninstalled. The Mac that panics needs an active SMB session. A Mac left on the network without a share mounted stayed up through several events that took down the others. Panics are often simultaneous across machines: two to six Macs, with different hardware and different macOS builds, within the same minute. It doesn't need sustained heavy throughput. Some panics came within minutes of reconnecting, during light editing. Setting kern.skywalk.flowswitch.rx_agg_tcp_host=0 did not help. The switch and server links stay up, and spanning tree doesn't change during these events. Only the Macs' ports drop. In one server-side capture, the client stopped sending within about 0.2 ms of receiving a READ response made of 8948-byte frames. That fits the panicked thread being dlil_input. Two existing threads look related Kernel panic using Vagrant synced folders via NFS beginning with macOS 15.4 (FB17853906). A DTS reply there said the issue is in kernel mbuf management and that SMB "is very likely to experience a similar panic." Incorrect packet handling in SMBClient MacOS 26, which describes a race in SMBClient under heavy load above about 10 Gbps. Questions Is this the same underlying issue as FB17853906, and is a fix planned for macOS 26? Our 2019 Mac Pros can't move to a later major release. Is there a known workaround, such as a sysctl, an nsmb.conf option, or a change to MTU or offload settings? Is there logging or a diagnostic we can leave enabled to capture more state at panic time? We can't reproduce this on demand, but between several machines we see it multiple times a day. We can provide full panic reports, sysdiagnoses, and packet captures from both client and server sides.

Hi Quinn — following up from DTS case 22070584. I'm working on a Windows compatibility runtime (Wine plus a CPU translator) that runs natively on Apple Silicon. 64-bit x86 Windows programs work fine. 32-bit ones don't, because they need address space in the low 4 GB: guest pointers are 32-bit, and some Windows structures sit at fixed addresses like 0x7ffe0000 that programs read directly. On arm64 I can't get anything down there: task_info(TASK_VM_INFO) -> min_address 0x100ea0000 mmap(0x7ffe0000, MAP_FIXED) -> ENOMEM mach_vm_allocate(0x7ffe0000, VM_FLAGS_FIXED) -> KERN_INVALID_ADDRESS There's also nothing below 4 GB to remove: mach_vm_region finds no entry there at all, and mach_vm_deallocate(0, 4 GB) returns KERN_SUCCESS without changing anything. Building with a smaller __PAGEZERO doesn't help either — every size I tried (0x1000, 0x4000, 0x10000, 0x100000, 0x1000000, 0x10000000, 0x80000000) gets SIGKILLed before main, with no crash report. Ad-hoc signing, the hardened runtime and -no_pie made no difference. I did notice /usr/libexec/rosetta/runtime is arm64 with no __PAGEZERO segment at all and __TEXT at vmaddr 0, so the kernel can clearly do this, at least for platform binaries. Is there a supported way for a third-party arm64 process to map below 4 GB — an entitlement, a spawn attribute, something I've missed? If the answer is no, that's fine, I'd just like to know so I can stop looking and plan around it. I have two small test programs that print all of the above if they'd be useful.

[Submitted as FB24979057] Device Hub is consistently crashing for me in Xcode 27.1. I initially encountered it while working in Xcode, but I can reproduce it completely independently of any project: Quit Xcode. Launch Device Hub directly. Wait a couple of seconds. Device Hub crashes. The latest crash occurred about two seconds after Device Hub launched, so this doesn’t appear to be related to a particular Xcode project. :chatgpt-content-reference{index="0"} Environment Xcode 27.0 (27A266a) DeviceHub 27.0 (255.2.6.6) macOS 27.0.1 (26A434) Apple silicon The crash is on the main thread during AppKit/SwiftUI layout and constraint updating: :chatgpt-content-reference{index="1"} :chatgpt-content-reference{index="2"} Exception Type: EXC_CRASH (SIGABRT) Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6 AppKit -[NSWindow(NSDisplayCycle) _postWindowNeedsUpdateConstraints] -[NSView setNeedsUpdateConstraints:] SwiftUI NSHostingView.setNeedsUpdate() NSHostingView.beginTransaction() AppKitPlatformViewHost.invalidateLayout() NSHostingView.SizeConstraints.update(from:) DeviceHub main Has anyone else seen this in Xcode 27.1 or found a workaround?

Hello, I’m experiencing a sudden TestFlight issue affecting multiple unrelated apps under the same Apple Developer account/team. Several TestFlight builds across my apps suddenly changed to Expired at the same time, even though many of them were uploaded only a few days ago and were nowhere near the normal 90-day expiration period. I also uploaded a brand-new build to check whether the problem was related only to existing builds. The new build: Processed successfully Appears normally in App Store Connect Appears in the TestFlight app Shows 90 days remaining Shows the Update button However, when I try to install or update it, TestFlight immediately displays: “The requested app is not available or doesn’t exist.” So build upload and processing appear to work correctly, but TestFlight distribution/install does not. Since multiple completely separate apps under the same developer team became affected at approximately the same time, this appears to be an account/team-level TestFlight issue rather than an issue with a specific Bundle ID, provisioning profile, certificate, project, or individual build. I have also seen recent reports mentioning: ENTITY_UNPROCESSABLE.BETA_CONTRACT_MISSING and TestFlight Beta Contract issues. Has anyone confirmed whether this is currently an Apple-side TestFlight backend / Beta Contract issue? If Apple staff see this post, could you please check whether TestFlight beta distribution provisioning or the Beta Contract for affected developer teams needs to be re-provisioned? I can provide screenshots showing: Existing builds suddenly marked as Expired A newly uploaded build showing 90 days remaining The installation error Thank you

I have raised Feedback FB23036084 Just using it on an extremely small app that display six SwiftUI charts. I was just scrolling on a ScrollView of the charts. Th feedback has a link to the app on GitHub, the content of the generate report details and also the output of running xcrun simctl diagnose

On both iOS & macOS 27.2 Beta 2 the call: let token = try await MusicDataRequest.tokenProvider.developerToken(options: [.ignoreCache]) is throwing an error. I can reproduce this on all of my 27.2 Beta 2 devices and I have users worldwide reaching out to me with this issue. The error that gets thrown is: Unknown error "Error returned from daemon: Error Domain=com.apple.accounts Code=9 "(null)"" Have raised FB24895830.

I had logged into my mac with my Apple ID. Then, I downloaded the Apple Developer App and signed in with my other Apple ID and I purchased an Apple Developer Program membership from the Developer app yesterday. The payment was completed successfully, and I have received the receipt and confirmation in my first Apple ID which I had logged into my Macbook. When I check account.apple.com, the Apple Developer subscription shows as active. However, when I sign in to developer.apple.com with the both of my accounts, it still shows “Enroll today” instead of showing my Developer Program membership. I also do not have access to Membership Details, Team ID, Certificates, Identifiers & Profiles, or the other Developer Program resources. I have contacted the support but they are so lazy to reply. Also they do not seem to be understanding the problem. Could someone help me?

I am building my 1st App. I was able to push my App in my iPhoen and also to some internal testers until now. I made some changes in my App in XCode and pushed the App Build to internal testers (including my iPhone). First I removed the old App version from my phone due to this issue. Now I can see the status of my App is Testing, I get email notification of Test flight. I can see the App in Test Flight in my phone. but when I click on the 'Install' button, it says - Could not Install [App Name]. The requested app is not available or doesn't exist. I tried several options like building the new version. but me and all other internal testers are having the same issue. I build the App in Flutter so I am testing in Andriod phone also. I am able to test he new build in Andriod phone without any issue. But in Iphone it is filing since last 4-5 days. I created a service request (Case ID 102974814384) last week but no response from Apple support. I am very frustrated as it is my 1st App and I am losing confidence thinking what will happen if such issues keep coming after I go live.

Our company domain datario.sk is rejected by Apple as an invalid email address. This happens in multiple Apple systems: at account.apple.com when adding an address, and in the Developer Program enrollment work email step. The rejection appears in the form immediately, before any email is sent. No request ever reaches my mail server — my hosting provider checked the logs and found no connection attempt from Apple's servers at all. MX and SPF records are valid and all other senders (Google, Stripe, Dun & Bradstreet) deliver normally. The address datario [at] datario.sk is the sign-in address of this Apple Account and previously worked without any issue, so something changed on Apple's side. Developer Support has investigated this since mid-August (case 20000137748005, engineering ticket INC103315840). I provided identity and company documents and screen recordings requested by engineering. The conclusion was that no issue was found on Apple's side, and I was directed to AppleCare, where the only contact option available in my region is a phone call. Our Android app has been live on Google Play for weeks; the iOS version cannot be released because enrollment is blocked. Is there anyone who can check whether datario.sk is on a suppression or block list in Apple's systems?

I'm developing an PWA app which really needs the whole screen real estate in focus... Any idea if Apple will make the status bar blur a choice for the developer, not something that is forced? It drives me nuts!

Hi, I started my enrollment in the Apple Developer Program in August 2026, but the process has been stuck under review since then (Enrollment ID = NUD4NCB2LZ) When I check my enrollment status, I’m still asked to wait for the review to be completed, but I haven’t received any updates or requests for additional information. A couple of weeks ago, I also contacted Apple Developer Support by email to ask about the status of my enrollment, but unfortunately I haven’t received a response yet. It has now been more than a month since I started the enrollment process, and I’m not sure if there is anything else I need to do on my side. Has anyone experienced a similar delay recently? Is there another way to contact Apple Developer Support or request a review of the enrollment? Any advice would be appreciated. Thanks!

Hello, We are currently trying to complete the Apple Developer Program organization enrollment for Rabo Trading Limited, but the enrollment has now been pending for approximately two months. Enrollment ID: 225W46ZVL6 Our original enrollment-related support case is Case 20000118314959. Through this case, a Senior Advisor from Apple Developer Support contacted us and requested additional documentation to verify the legal authority of our director and the principal place of business of the company. We submitted the requested signed documentation through Apple’s secure file upload system on August 10, 2026. The document included the requested authority confirmation, company address, telephone number, enrollment ID, case number, director information, title, contact details, and signature. Since submitting the requested documentation, we have received no further response or update regarding the enrollment review. Because we were unable to obtain any response, we subsequently opened two additional Apple Developer Support cases: Case 20000152530724 Opened on August 31, 2026, with an additional follow-up on September 2, 2026. Case 102955765663 Opened on September 7, 2026, with an additional follow-up on September 9, 2026. Unfortunately, we have received no response at all to either of these additional cases. We were therefore unable to establish any communication with Apple Developer Support through these requests. We also requested telephone support / a callback regarding the enrollment, but no callback was received. At this point, more than six weeks have passed since we submitted the additional documentation specifically requested by Apple, and the overall enrollment process has been pending for approximately two months. We currently have no indication whether the enrollment is still under review, whether the submitted documents are awaiting verification, whether the case is waiting for action from a specific review team, or whether any additional action is required from our side. Could an Apple Developer Support representative please review the status of Enrollment ID 225W46ZVL6 and the original Case 20000118314959, or advise us on how this enrollment can be escalated to the appropriate review team? For reference, the related support cases are: 20000118314959 – Original enrollment case 20000152530724 – Follow-up support case, no response received 102955765663 – Follow-up support case, no response received We are ready to provide any additional documentation or verification immediately if required. Thank you for your assistance.

Hi, I’m trying to complete an organization enrollment for Rocket Pixel Labs Inc., but the enrollment appears to be stuck. I originally submitted Apple Developer Support case number 102961063244. Then a second request, case number 102965530664, referencing the original because I had not received a response. Apple sent a bank verification email at approximately 10:30 PM, but the verification link was only valid for 10 minutes. Because it arrived so late at night, I may have already been asleep, and we don’t normally monitor our business email that late. By the time I saw the email, the 10-minute window had already expired. I requested that the bank verification be resent so I can complete enrollment, but I haven’t received a response to either case. There’s also currently no phone or callback option available to me on the Apple Developer Support contact page. Could an Apple Developer Support representative please review these cases and resend the bank verification request so that I can complete enrollment? Thank you.

Our Apple Developer Program organization enrollment has been stuck in Pending since September 15, 2026. The $99 membership payment was successfully processed and has fully settled. The Apple order page now shows “Enrollment Complete” and “Electronically Delivered,” but the Developer account remains Pending and we still do not have access to the Developer Program. The order originally indicated that processing could take up to 48 hours, but it has now been seven days. We have contacted Apple Developer Support and have open support cases, but responses have been significantly delayed. Has anyone experienced the same situation where the membership was successfully paid and electronically delivered, but the Developer account remained Pending? If so, was Developer Support required to manually activate or link the membership? Any guidance from someone who has experienced this would be greatly appreciated.

Our organization enrollment has been stuck on "Purchase your membership — complete your purchase now" for over three weeks, despite a fully settled payment confirmed by Apple's own invoice. We have received no meaningful response across multiple support cases. What we have tried: Three payment attempts across two cardholders, using cards confirmed working internationally and within the App Store itself Multiple support cases (102967185439, 102951154946, 20000139412498), no resolution Phone callback is not offered for our region, so that escalation path is unavailable to us Emailed Apple Developer Support directly multiple times, no reply This is clearly not a payment issue — Apple's own invoice confirms the charge is complete and settled. This appears to be a backend provisioning failure where the completed payment has not been linked to our verified enrollment. We are a legitimate registered business with a valid D-U-N-S number. Our app is already live on Google Play and Huawei AppGallery — Apple is the only platform where enrollment has failed to complete, and it is blocking our launch. Requesting: escalation to the enrollment/payment team to manually review Enrollment ID K36V8XF97H against confirmed payment invoice MD07881249 and complete our account activation. Happy to provide any verification details needed. If anyone from Apple Developer Relations can help escalate, or if any developer has resolved a similar backend-linking issue, we would greatly appreciate it.

Apple Developer Team, please help review my enrollment. My payment has already been charged and I received the official invoice, but my Developer Program enrollment is still pending. I have contacted Apple Developer Support multiple times but have not received any response. Please help check my case and provide an update. Thank you.

It is really funny that Apple Developer Program charged me the enrollment fee, but my account was never approved. My enrollment remained pending for a long time, and then the pending status was suddenly removed and I was asked to enroll again. I have already contacted Apple Developer Support several times, but I still have not received a clear solution. This issue has been delayed for a long time, and until now my account is still not approved even though the payment was already charged. I really need Apple Developer Support to properly investigate my enrollment, confirm the payment that was charged, and provide a clear solution instead of asking me to start the enrollment process again. I understand that personal credentials and payment information should normally not be shared publicly. However, because it has been very difficult to get proper support from Apple and my issue has remained unresolved for a long time, I decided to post the invoice as proof that the Apple Developer Program payment was already charged. I have tried contacting Apple Developer Support multiple times, but I still have not received a clear solution regarding my enrollment.

Hello everyone! I've run into an issue with my Apple Developer account enrollment and am hoping for some advice from anyone who might have experienced this. On September 16, My order ID (MML57TZM9S) I paid for the annual subscription. The funds were successfully deducted from my card, and I received the official receipt from Apple confirming the purchase. However, my developer account is still inactive, and the system displays an error message indicating that the enrollment could not be completed at this time. Here is my current situation: My account is registered in Uzbekistan, so the automatic callback option in support is not available. I have already submitted a request via the contact page form, attached a screenshot of the payment receipt, and asked them to either activate my account or call me back. I received a confirmation from support with Case ID 102970413444. I am now in waiting mode.

Hi everyone, I’m having a pretty frustrating issue with my Individual Apple Developer Program enrollment and I’m wondering if anyone has experienced something similar. My enrollment has been stuck in Pending since August 3. The Apple Developer app couldn’t verify my identity because, for some reason, it only offers Driver’s License as a document type. I don’t have a compatible license, so Developer Support asked me to upload my valid passport through their secure upload page for manual verification. I did that, and on August 19 a Senior Advisor told me that my information was being reviewed. Since then I’ve followed up several times, but I haven’t received any meaningful update. My support case is still open: Case ID: 20000126998264 There’s also a strange payment issue. My first €99 membership payment went through successfully, but Apple later cancelled the order. I recently tried paying again through the web enrollment page. Apple now shows an authorization error saying that my bank declined the transaction. I contacted my bank, though, and they confirmed that they never received an authorization request for the €99 transaction at all. There isn’t even a failed payment attempt in their system. So it seems like the payment is being rejected somewhere before it reaches the card issuer. At this point I’m not sure whether the payment problem is related to the pending manual identity review, a stuck enrollment/payment state, or something else on Apple’s side. Has anyone run into this combination before? If someone from Apple Developer Support sees this, I’d really appreciate it if you could take a look at Case 20000126998264 or let me know what I should do next. I’m happy to provide any additional verification or documentation that’s needed. Thanks!

Hello. I was trying to build a project on my Macbook via XCode and came across the message: "Communication with Apple failed. Your maximum App ID limit has been reached. You may create up to 10 App IDs every 7 days". Is there a solution to this? I don't know how much the prices are but I don't think I can afford it. What can you suggest to continue building projects with a free account?