Could be because of laggy internet
natural animation causing games to glitch

What do you mean by glitch? Can you also let me know what browser you were using?
i was using google chrome, with 5 other inactive tabs open

I was using Firefox and during an Arena yesterday, My board was glitching a bit with some brightness flashing on screen and pieces not being visible.

something similar appeared in a game of mine! where there was a bug in which the mouse does not move the piece!

I remember this happening in the past.
Was it like this?
https://www.youtube.com/watch?v=Z6yw-pv1Uew
I was playing my game, and when I changed the animations to natural, my game started glitching.