I did, scan all files.
Started again, ME, created a simple mission for this map with F16C
Started, I had about 2-3 FPS for a few seconds and than, PC restarted.
RTX 5090, 8k, 32 GB DDR4, mainboard Asus Z690, I9 12900K
As I said, I have no issues with other maps, aircrafts or other games / sims.
Weird, I can't see a folder with this map, inside the Mission Editor.
Should I try, maybe, to uninstall - reinstall the map ?
Thank you