
This is something that I can reproduce at will. I suspect it won't be difficult to recreate but I can upload a save if you need.
Circumstances:
- 2.0.23
- on a multiplayer server
- on a space platform
Given this arrangement: where both belts are set to "Read Belt Contents", "hold",
When:
I take the bottom-right belt, ctrl-x just the one tile, rotate it 90 deg ccw, and super-force-place it over the curved belt like so: Then:
My game crashes. The server is fine, and when logging back in, the belts are arranged exactly as expected: