I would say about half the project is in c++. I can first check pulling out all content on Monday, so i will come back to you on that. The code i changed in the savegame file was only relevant to map1 and it was used to spawn items for out characters using a class description, but other maps still crashes without using these elements. Maps M1, M2 and M3 was just examples, we have many maps that can fit in the three spots and replicate the error in the same way. The crash both happens when doing M1->M2->M3 but also M1->M3->M2 or something like M1->M2->M1->M3.
I can first do more debugging on monday, do you have any suggestions on what i can do besides trying to pull all content out?
Thanks