@sim @UberGoober - that’s weird, the version I posted ran OK on my machine - so I downloaded the webrepo version. Which threw up two errors - two displaymode() error corrected first then second one popped up. Corrected that then the project ran (noisy music on intro) then ran after tapping screen. Flew around a little noted the join at the apex of the 3D box (as mentioned before non standard environment approach). Then closed down.
What errors did you encounter - I assume it defaults to the mode that the project is currently running in - could there be errors in setup if your system defaults to a later version than the more compatible V3 modes ?