Bug when the character does not move in the intended direction. When clicking somewhere the character will attempt to move in the wrong direction (usually down in my experience), during this period it is also impossible to pickup items/enter dungeons/open chests.

I do not know what causes the bug, but it makes the game unplayable. I also do not know exactly how it fixes itself, as it has done after alt-tabs, attacking, rolling and inventory actions. It seems to randomly start and stop, I cannot reproduce it, but it happens an awful lot.

Here is a video of it in action: https://www.youtube.com/watch?v=idn139bUu4I

Notice how I am clicking and holding walk in other directions but the character keeps trying to move downwards. 

Duplicate of MCD-259. Sorry mods, couldn't find anything about it until I just stumbled upon it now.