If you are in combat pace mode and enter the animation for dragging something (AcinPknlMstpSrasWrflDnon) you cannot move.
If you press the ToggleCombatPace key (I have assigned to 't') then you can move again.
If you are in combat pace mode and enter the animation for dragging something (AcinPknlMstpSrasWrflDnon) you cannot move.
If you press the ToggleCombatPace key (I have assigned to 't') then you can move again.
If you skip step 1 by being in walking or running speed then you don't get stuck unable to move.
Still reproducible as of 1.80.
Another workaround is by press the lean keys (default Q/E) and S, at the same time.