If you create a new file on start up, I'll be a simple draw, which you can switch to animate. Once in animation, when you create a new file, it will also be an animation file, but the program will then crash. However, if you create two files and set one to animated, the other will also be an animation, but wont crash.

Reproducible: Always

Steps to Reproduce:
1.Create file
2.Set to animation
3.Create a new file

Actual Results:  
The program goes white a window appears. it says "krita.exe has stopped working" And that windows is searching for a solution, it then gives an option to either continue searching or close the program.

Expected Results:  
I suppose it should have two files with separate tabs that can be animations. Either that, or the new tab will be a drawing tab, not n animation tab.