Bugs on Xbox Series S

I finally managed to play today and had a quite a few serious bugs:

First off, in the pause menu and settings menu, I often found that I couldn't navigate through at all. It seemed that the highlight cursor / button select thing just gets lost and won't move around the buttons. Some times I manage to get it back and finally select what I needed, but others I would just have to press B out of the menu and try again.

Most serious was at the end of some matches, where it would say the next match was ready to start but it wouldn't let be proceed (pressing A did nothing). When I was playing with M&K, there wasn't even a button to select to proceed. Input was otherwise responsive. 

Mouse and Keyboard:

I played a round with MnK which worked fairly well, but there seemed to be performance issues in game as a result. There was occasional freezing for a second, and frame rate seemed to be less that when using a controller. Keyboard input was rather 'sticky'- if I held down W for more than a few seconds then it would continue to move me forward for a couple of seconds after releasing the key. Sometimes the game wouldn't respond to keyboard input first time, or for a couple of seconds. 

Mouse cursor movement in menus was also laggy, like it was moving through sludge.