Transaction.currentEntitlements sometimes does not emit a result until device is reboot

I have the typical StoreKit 2 manager class, where I check currentEntitlements for subscription.

I have filed a feedback (FB22349195), I hope someone can take a look at it.

func updateCustomerProductStatus() async {
    var activeSubscription: String? = nil
    
    // BUG: In some cases the currentEntitlements does not emit a transaction until the device is reboot
    for await result in Transaction.currentEntitlements {
        print("Found transaction: \(result)") // This print does not appear until a restart!
        do {
            let transaction = try checkVerified(result)
            
            // Skip revoked transactions
            if transaction.revocationDate != nil {
                print("Skipping revoked transaction for \(transaction.productID)")
                continue
            }
            
            // Skip expired subscriptions
            if let expirationDate = transaction.expirationDate, expirationDate < Date() {
                print("Skipping expired subscription for \(transaction.productID)")
                continue
            }
            
            // Check product type
            switch transaction.productType {
            case .autoRenewable:
                activeSubscription = transaction.productID
            default: break
            }
        } catch {
            print("Unable to verify transaction: \(error)")
        }
    }
    
    // Update state once after processing all entitlements
    self.activeSubscription = activeSubscription
    
    print("updateCustomerProductStatus() activeSubscription: \(activeSubscription ?? "nil")")
}

There is some unexpected behavior where the currentEntitlements does not emit a result until the iPhone device is reboot.

This bug appeared in iOS 26.4 (and in the betas).