I've been having trouble with a token that's been opened to me as my character that I can move and rotate, but occasionally when I rotate it, I lose the ability to rotate it any further. I can still move the token, but clicking on the rotation square coming off the token just results in dragging a selection box. The only fix to this is that if the GM rotates my token, I can suddenly rotate it again normally until this bug is reproduced (inconsistently, so far as I've seen).
Attached is a screenshot of my specifications, from the recommended website.