Hi
If I select the whole dataset in the history output window and I press conctrol +c to copy, Prepomax 2.3.9 closes.
Regards
With any model or just a particular one ? I can’t confirm so far.
Test with another file and same result. Prepomax closes.
I could reproduce the problem sometimes. I added some error handling that helps, but it does not remove the core issue. I can not pinpoint it.
Did you use some kind of virtual machine or remote desktop app while experiencing the bug?
Can you confirm the bug is solved or at least the result is improved?
Solved. 
Thanks.