Custom user fallback button in LAContext Not Support in ios8.3

Question

I have customized the fallback button by setting localizedFallbackTitle to "Use Password". It worked. But after I updated my iPhone to iOS 8.3, the fallback button disappeared on the TouchID view.

Is this the API updated or a bug of iOS 8.3?

How to fix it?

Answer 1

It works. It only shows up, when user fails for authentication via TouchId for first time. It come up in second step.

iOS 8.2, it was like :

Now, in iOS 8.3, it is in two steps : First,

And second, if you fails in verifying your fingerprint.

localizedFallbackTitle(== "Enter Password" in above images) can be seen on second popup.