Ahh crap okay so this is why; I’d have to build the game on Windows (I only have Linux). I’ll see if I can get the game to build on my VM when I can find the time.
Aha, interesting! Well, that piece of information got me thinking that I might be able to use WSL to spin up the Linux build of the simulator, and that does seem to work! :D
EDIT: I'll need to contend with the lack of keyboard remapping in the simulator for flipped screen, but I think I'll be able to find a workaround with AutoHotKey or similar. :)