ArtRage 5.0.4 seems to crash for me consistently when I am using the clone tool, I seem to be able to repeat it, here is a video :

https://youtu.be/UbPaPfPC0TU

Surface Pro 4
Windows 10 64 bit

I first noticed this several times during my last painting, and may I just say how well the new saving mechanism works which meant that a save seemed to take place after the crash meaning that I didn't lose any work