UIAlertController disappearing instantaneously for iOS 15

I am using EAAccessoryManager to connect to bluetooth device. The code is working correctly but for iOS 15 when there is an error the error message disappears straight away.

here is the code that I am

EAAccessoryManager *accessoryManager = [EAAccessoryManager sharedAccessoryManager];

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self BEGINSWITH %@ OR self BEGINSWITH %@", FIRSTVALUE, SECONDVALUE];
  [accessoryManager showBluetoothAccessoryPickerWithNameFilter:predicate
                                                    completion:completionBlock];

The completion block is hit after the AlertDialog has disappeared. I have tried setting it to nil and still get the same behaviour for iOS 15

The bluethooth device shows the following message for iOS 14 and below.

For iOS 15 it shows for a split second and dismisses itself.

This is the error I am getting

EABluetoothAccessoryPickerErrorDomain

Any one know why iOS 15 might be having this behaviour. Any help would be appriciated.