Toggling weapon switch while in vendor trade bugs out character

Didn't think a screenshot was really useful in this situation so I just described whats happening.

When I press "X" to switch my weapons while having a vendor "Sell" trade window open my character becomes un-moveable upon closing the trade window.

I have reproduced this on a few different characters.

I found this early in my first beta character so I don't currently have access to acts II, III, and IV in normal, but the behaviour is consistent with all Lioneye's watch vendors.

I wasn't able to find someone to group to test if this happens with a player trade window.

Keep up the great work! You guys are awesome!