All My Edges and Doors Stopped Working.

I closed out of the program and then when I went back in none of the edges or doors block light. I experimented by drawing a new one and it blocked light but none of my previous one do no matter what I do. And all of them where complete I was labeling and adding monsters. And it is a big map Temple of Elemental Evil Moathouse dungeon. Not thrilled if I have to go back and redo every edge and door. :x

 

Ok. I Xed out of the map, saving a copy, and then reopened it and now they are back working. So got lucky there. Still kind of a bug.

And as another small bit for some reason it asked to retrieve my work like I didn't shut down properly but I had. Not sure what that was all about but it was after asking that when the edges and doors stopped working.