Turns put my Memory is malefunctioning. This can ne closed.

Sadly not. I tried doing the exact same things I did before the crash, no "luck" so far. I think I placed some underground belt before I crashed, wasn't able to reproduce the error though... The error sounds like there might have been some Z-fighting going on, or maybe a concurrency race condition ...

This error seemed to occure while moving around my factory.

It is the first time the game crashed,
no mods enabled,
Singleplayer,
Train World + Marathon Settings.

Last save and config included.
My Setup is not very well tested yet and may have some hickups from overclocking, so it might be ...