[V19 Experimental Ground Combat] Crash on terror mission compeletion

Whenever I finish a terror mission against the serbians in where I cause the roof of a building to cave in the game immediately crashes when I finish the mission and press go after the soldier development screen.

https://docs.google.com/file/d/0ByqwN9aAAGY0X0xaQVNjeS1KWWc/edit?usp=sharing

The Dump file.

https://docs.google.com/file/d/0ByqwN9aAAGY0a1NmSE8xVzJ3bXc/edit?usp=sharing

This save I believe is the one that contains the crash, as soon as you kill the last serillian the mission ends and after the soldier dev screen it crashes to desktop.

Was there any smoke involved if you can recall?

I'm using a workaround for the smoke issues. aka setting all smoke to have a 100% chance to dissipate and made the smoke chance of all weapons to none. I did however resolved this crash by having one soldier Scout around the map once more before I killed the last of the xeno scum. So it looks like it wasn't the rubble. Still don't know what exactly caused the crash.

That being said I think there might of been smoke somewhere on the level that cleared when I got LoS on it.