Crash playing with UI

[Raistlin]

1) Goldsmith 50 with Crafting log open after craft something
2) Change class to Weaver 50
3) Double click N key to close and open crafting log fast.
4) Crash

[Lvegera]

We appreciate you taking the time to report this error to us. However, there are still some details that we need to collect from you before we are able to investigate this properly. If you could please provide the following information, we will make sure that your report is looked into so we can try to resolve it.
Character name:
World:
Class/Level:
Area and coordinates:
Steps:
1.
2.
3.
<*Add more steps if necessary>