tja

I already tried to change the sequence of actions when I still played 1.29. But I couldn't find a not crashing sequence. But I gave it another try and indeed found a sequence where the game did not crash. I then did another game where I used up all action points, saved the game then ended the turn. I repeated that until I had a crashing save game. I switched to 1.31d Experimental and ... no crash. Dear Chris I really appreciate that you tried to find the bug!! However, I do agree with you: if it doesn't crash on experimental and you have no log to help with the search then it is too much effort compared with the chance that you catch the bug. I'll do as you say and continue my game. Thank you!

Thank you so much for your help! I used 1.31d Experimental and the game did not crash. I have GOG and I deactivated the experimental branch. Did an uninstall and a new install. The game claimed to be "1.31d" but loaded much faster than an experimental version. I assume I have the 1.31d stable version now. I played my save game and the game crashes again. 1.31d stable appears not to be the same as 1.31d experimental ... What shall I do next?

I was playing a ground mission and hit "end turn". During the friendly movement the game crashes to desktop. Crash persists in 1.30. Just end the turn to reproduce the crash. Log file is size 0. https://drive.google.com/file/d/1nRIwVWj5oUmkz_xRak3a9uUmbQBJTJIm/view?usp=sharing