Comment by kazinator

To be clear, I diagnosed the missing dot issue by typing very slowly and carefully. The issue appears in repeatable streaks for me. For instance, the second character of the password might be dropped. If I repeat this several times, typing very deliberately and slowly, I can see the behavior repeat: no response for second character. Two workarounds are to just backspace and try again until the behavior goes away, or just notice that a character was dropped and type it again.