problems after updating to iPad OS.

I just updated to iPad OS. There are a couple of issues I am facing since then:

A. The keyboard (the physical keyboard of the folio) is not working with third party application (telegram) when on slide over mode or multi tasking mode. I have to close the applications and start it as standalone then, it starts working again. The soft keyboard also creates some sort of glitch-iness in such modes. This was not a problem I encountered earlier.

B. The mail app, when you select a new mail, it selects the mail you are on and the new mail that I have clicked on everytime, there by going into multi selection mode. I have to cancel that and then again select the mail I intended to open and that works. But everytime this happening is annoying.

Are these problems being faced by anyone else? Is there a workaround that is already known?