Character stuck in place

Randomly in monoliths, my character freezes on the screen and I can’t move. All other keyboard and mouse functions work. I can open a portal and leave the monolith. This also happened in the Arena. I have updated Windows, BIOS, all graphics and motherboard/chipset drivers, closed unnecessary apps. Nothing helps. I’ve played over 100 hours and this just started happening after the most recent update I believe.

Also, after leaving the monolith, the character remains frozen and I have to exit and restart the game.