I encountered it on several characters after recent update.
When I log in character is locked and can't move. Resting fixes condition and allow to run/walk once again. Spamming movement buttons (W, S) sometimes helps too, character starts to move from the spot where it was locked.
Re-logging locks character again so you either need to rest again, either keep pressing movement buttons.
Corpsing and ressurection of character doesn't seems to fix issue.
Several more players suffered from the same issue.