To anyone having problems with falling through the floor: I did some testing and that only seems to happen consistently with the 10-car garages.
I deleted/reinstalled the mod and only bought the 2-car and 6-car properties (from both basic SPG and the Extended SPG), and now all of those are working fine for me.
Also, you can remove all those unpurchased 10-car ones from your map by deleting their folder in scripts/SinglePlayerGarage/. Hope this helps some people.
To anyone having problems with falling through the floor: I did some testing and that only seems to happen consistently with the 10-car garages.
I deleted/reinstalled the mod and only bought the 2-car and 6-car properties (from both basic SPG and the Extended SPG), and now all of those are working fine for me.
Also, you can remove all those unpurchased 10-car ones from your map by deleting their folder in scripts/SinglePlayerGarage/. Hope this helps some people.