Your newly introduced feature to take a screenshot of your camera position while saving the game to display it as a preview and then in the loading screen is veeery likely causing this issue. Even I can make this (educated) guess from the posts (and the posted logs) in your forums (and other platforms). It would be fundamentally awesome if you guys could finally acknowledge that, move forward and fix the issue... instead we're still discussing if this is something you'll forward to your devs.
FYI:
- saves will result in error
- sometimes its the first save after loading into the game, sometimes its the 14th; or anything in between really
- It doesn't matter if you save locally or on steam cloud (even though when I switched over to steam cloud for a bit of testing it seemed to work for a bit (aka 10-20 saves across 2-3 sessions of playing), until it didnt)
- mods don't matter (aka the problem will happen with or without mods activated or even installed)
- re-installing the game doesn't fix it; not even a fresh install on a different disk
And no, I will not post another log as there are plenty in this post and others; any log I have or that I can create upon your request will literally look EXACTLY the same:
The only thing that will change is the sub-folder in "\\Cities Skylines II\\..." (so in the above case its "0e499ad5c6de4294b77cdb6e2ac5094a") and obviously the save file itself.