Characters can acquire an issue where their weapons remain drawn after combat, and when walking/moving around their arms stay locked down near their hips. Sort of a stiff run animation (their arms don't move). It's really jarring and the only way to get out of it is to either switch off to a ranged weapon or just unequip their melee weapons and re-equip them. It's particularly bad with the greatsword that drops from Zhalk.