I have a problem with storiesconv. Some map models have bugs and cause game to crash
Yes, that happened to me too.
First detect which models cause the crash (i only had one model, i guess you too, specially if you are converting LCS map like me).
Delete half IPL entries in the file that correspond the zone causing the crash. Discard those elements if crashing stops. Reduce your items until you find the bugged model.
If you are converting LCS like me, probably we have the same bugged model, that is ---> landpart100.dff
Go to suburb.ipl and comment that line, test.
Once you have found the bugged element, you can correct it with a simple 3DS Max edit, it worked for me!
Import with Kam's script, export with deniska script (you could use Kam for export too, but don't forget to activate the Vcol option or your model will lose its vertex paint (enviroment light/shadow effect), and even with Vcol activated, sometimes the model can look too bright, deniska dff exporter solves that with geometry light box unchecked).