Can't save a MMS File in Studio On Lin

[SuElyn Chase Veitch]

I'm working on a space plan for a very large master bathroom, 17' x 20'. I picked a floor tile that is 32" square. I imported the photo of the tile, duplicated it enough to have it in a row, duplicated that many times so that I could use it on the floor in the 1/4" floor plan. When I go to save it, the save icon doesn't appear. It crashed once...and it wasn't saved. I've now done it again...and it still won't save. Any words of wisdom? I've attached a screen shot.