Color mixing software crashes

[Koen_2705]

I recently bought an A20T and am experiencing some problems with the mixing software.
Whenever i select 3 extruder the program won't mix the colors and closes on its own. The preview works and shows what i want, but every time I select mix it crashes.
If I select 2 extruders everything works fine.

Does anybody has the solution or maybe some other software I can use.