Guild of Writers

I am having trouble with collision for a plane. I have a plane as a floor and only the center of the plane has collision, the edges have no collision.

I have attached two images and circled the areas where the collision vanishes. Everything except those 4 corners has collision. This is my second attempt at doing this floor, my first attempt had collision at the edges but not in the middle.

Could use some help figuring out why the collision is messing up with this plane.

While I don't have an explanation for this particular problem, I have a universal solution: don't use collision on your visible meshes.
Use an invisible collider that defines the floor and the walls of the playable area.
You will avoid performance problems in the future and gain flexibility.

Well how in the heck do I do that?

All my stuff is set with collision as that is the only way I know how to do.

Edit: Found the tutorial for it on the wiki. Will see if it works.

Edit 2: Weird, Still falling through the floor at the areas shown above. I will am going to increase the size of the collider to where it overlaps the outside of the building.

So much for the floor of the building. I had finally got it to work without me falling through. Then I proceeded on to the next thing I wanted to work on, the link-in spot. Somewhere along the way I accidentally deleted everything, not really sure how. When I noticed, it was too late to do anything other then start over. Good thing my last save was just before working on the floor. So all I have to do is get that fixed, again, and I will be back up to current.

Sounds normal.