This could be my issue with the 4th crusade crashing too! About 1217/18ish depending! I couldn't trace where it was. I had no idea that there was a Galicia in the Ukraine.
Do you know how to correct that Cool-Toxic? In your game files? I can fix that in my own files, and can try and upload them online like I did above. Gimme a few days to sort that out (unless Jord gets here beforehand.)
Glad that I could help. Just change the dynasty ID from 102003 to 705, which is Rurikovich and this branch in Galicia is of Rurikvich in the other scenarios.