Thanks!! Is the robot pinned against a wall in these cases? If they are pinned they wont move. But I will investigate this. Do you recall what puzzle this occurred in?
I have reproduced the bug, I think. If I press a direction toward the robot and then hold a different direction as I'm moving towards it, the bonk wont occur and the player instead stops in front of the robot, then moves the direction being held without the bonk happening. Is this what you are referring to?