In my e-signature workflow, I initiate the process from outside. So, a network provider notification comes in, I accept it, check a fingerprint presented, enter

In my e-signature workflow, I initiate the process from outside. So, a network provider notification comes in, I accept it, check a fingerprint presented, enter PIN, and hit send. So, there are couple of screens and a keyboard is presented to me. When I used a custom ROM, I never received the notification, IIRC. Even carrying the relevant bits from the official ROM didn’t matter. It never worked, crippling tons of things at the end. If used or reflashed the stock ROM, things have returned to normal.