My Islander has finally loaded in game and has not crashed as of writing this. I have not flown it just get but I am idle and parked in the normal avionics variant, with default livery.
Previously I could not load any version so for now I am happy at least one of the three seems ok.
Here's what I did:
- I was running XP 12.3.3 (I hesitated to update because of reports that the new update gave performance drops in frames per second)
- I updated my XP to 12.4.0-b1
- uninstalled the Islander, deleted all the X-aviation folders
- re-downloaded the installer from store
- reinstalled the islander
Will report back after checking to see if the other two variants load.