Can a tile be corrupt?

I'm very busy making Berlin bigger with extensions to Ruhleben and Kladow. I also did a remake of the Staaken are. Everything went well until last night. I closed the editor but i was forgotten some details and got back to it but after a few minutes it gave the famous zugriffverletzung message. Of course i'll tried to find the source of it but couldn't find it. At last i put back my most recent backup of the map. Same problem! I've have more backups and the one from a few weeks ago works, the others made in the meantime give the same problem.
After that i transfer my latest work to my older pc with also a full version of Omsi running on it. Same problem!

So i guess that the problem is in the scenery of in the splines. I did reinstall omsi and replaced mods like simplestreets, new scenery etc etc. The problem still occurs.

Not to forget: the other maps (basic, Spandau modern, Dortmund, Duisburg) are working fine.

Al last i'm thinking that a tile is getting corrupt of something? Í really don't know and i'm out of optoins at this moment.

Has anyone experience with this?

With kind regards.

Mr Drive