After investigation further, the steps are:
- Editor opens in map M1
- I open map M2
- I open map M3 → crash
The following two interactions will work however:
-
Editor opens in map M1
-
I open map M2
-
I reopen M1
-
Editor opens in map M1
-
I open map M3
-
I reopen M1
(both can be repeated back and forth)
I have found that if a map, that causes the crash, is in the chain, whether it was the last or second to last to be loaded, it will crash.
So i can open a ‘bad’ map up if it’s the first and then whichever map is loaded after will crash on load.
After using ½-1 hour looking through assets I have not found any particular asset which does not exist in both maps that are ‘good’ and ‘bad’.
But the investigation was just done on my computer and it seems, it might also crash at different times for the other people who work on the project.