Keyboard doesn't appear if Touch ID if "Enter Passcode" is selected after a failed attempt

[gerardg]

Using iOS 10.2

1. Enable TouchID
2. Attempt to unlock with wrong finger
3. Choose "Enter Passcode"
4. Passcode screen appears without the keyboard.

Looking at the debug view hierarchy, it's just not there.

It seems to be a timing issue. If I insert a wait (a lame workaround, I know) in requestTouchIDWithCompletion in LAErrorUserFallback, it appears.

response = VENTouchLockTouchIDResponseUsePasscode;
[NSThread sleepForTimeInterval: 0.001];

Not a great solution, but might help in tracking down a real one.

[Drag11]

I can confirm the issue after the same STRs.
[NSThread sleepForTimeInterval: 0.001]; in my case is not enough, [NSThread sleepForTimeInterval: 0.5]; works good.

[pouriaalmassi]

I tested this on a device and can confirm the lack of keyboard presentation. However, interestingly the space where the keyboard would be does in fact receive touches and inputs the correct key values.