Hi LuDK,
Thanks! I've been using it for a while and it appears to work just fine in my case. Are you using the latest beta? (Beta6)
If you are already using the latest beta, open the windows command prompt and start blender from there (by typing for example "C:\Program Files\Blender Foundation\Blender\blender.exe" then enter) . When sprytile/blender crashes the error causing the crash should remain in the command prompt. Can you tell me what you are getting? (Also knowing when it happens would be helpful)