Gets stuck on Redmi Note 4

[Aditya94A]

And a bunch of other devices.

Writing this here so others don't go crazy as well.

I get a call to onFingerLockScanning(true) and then attempt using the fingerprint scanner, but nothing is registered. It turns out that the system sometimes locks out the fingerprint scanner (and this locking out behavior is apparently not standardized, note that this is not the same as that "5 max attempts in whatever seconds" lock out) and apparently we have no way of detecting the lock out. The behavior seems to differ based on different manufacturer's. Everything works perfectly on the emulator, but fingerprint scanning randomly stops on seemingly random devices. Like redmi note 4.

At the very least, I'd love to have a way of knowing whether or not it'll work so I can, at the very least, fall back to other auth methods.

If anybody knows of a solution, please share :)