Please note this is not the "Continuous" moving bug, this one moves forward temporarily then stops even after all controls released.

This does happen all the time, anytime you press the (default) "o" key for watch and "k" key for compass they will pop up while you are chatting.

I noted the performance slowly degrades after a battle has been going on for long periods of time. Possibly due to building destruction? The amount of ragdolls?