I was trying to make some UAV scripts and game crashed when I added one blue Greyhawk to another one's group.
This reproduced few times later.
Today it failed while adding one ship to another ship's group.
I do not see exact pattern to reproduce: sometims it crash and sometimes not.
Here is crash report: {F174200}
Crash report #2: {F174202} (Here I disabled all mods except for Ares, which I use to run custom scripts for UAVs)