I have a large cylinder (think, silo) union-ed with a negative smaller cylinder and a negative box for entrance from the side. The player can see the "entrance" and the space inside, but cannot enter.
I tried making the parts -> CanCollide false and true before the negative-union, no difference.
The large cylinder was part of a bigger model, ungrouped before my attempts to make a cutout.
When I use fresh parts, I have no problems entering the new design. But I would like to reuse the older parts and understand what is wrong.
Any suggestions?