@Priwi, hello. Sorry for the late reply, but I was out of TpF2 for a while. But regarding your remark, it is strange that you are able to delete (bulldoze) the HQ. Normally that is not possible. You can only relocate it. The fact that you are able to bulldoze it, suggests a mod that unlocks some actions? So, do not bulldoze, but relocate your HQ to avoid the crash.

If you can tell me which mod permits to bulldoze the HQ, I will look into it, and see if a crash can be avoided.

@Yeol I don't use a mod to allow me to bulldoze it. Relocation seems to work fine, but i think, the road connecting the HQ, makes it bulldozable.

As for the mods i'm using:

-no End year
-Higher Peaks
-Madrid Taxis
-Modular Station Roof (modern and old)
-no costs
-sandbox
-Terrain Fever
-TgHyrt

and Yoels

I've managed to reproduce the problem. In debug mode (to be activated in the settings) and bulldozing with SHIFT-click, you can delete the HQ, en a few seconds later the game will crash.

I did not yet found the cause of the crash, but I'll look further into it. I also still have to check how bulldozing the HQ in vanilla ends up.

If solved the problem.... I think. In vanilla, bulldozing is prevented by a message, telling that you only may relocate the HQ. I managed to have the same behaviour: warning that you may not bulldoze, but have to relocate it. Seems clear, and enough as solution I think. ;)

sounds good, have to try it out soon.

Thanks for the quick feedback.

I just published the modified version.