Crash when using Mecanim and 2d Animations.

Hi,

I just started working with Mecanim so for the beginning i created 2D sprite animations: idle, attack and shot.
When I press spacebar animatinos are played one by one. It can be done 3-4 times but mostly when I’m trying to do something when animations are playing, Unity crash. Unity Editor has stopped working.

WARNING! LONG SPOILER!
Editor.log

Refresh

Fixed. It was GUI script causing crash.