Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Save Game Editor

I also have the steam version of the game, freshly installed, and experience the same problems (using alpha 25)

Fault application: MooseEdit.exe, Version: 0.0.0.0, time stamp: 0x02d108b8
Fault module: MooseEdit.exe, Version: 0.0.0.0, time stamp: 0x02d108b8
Exception code: 0xc0000005
Fault offset: 0x0001f2f5

Hope this helps.