Saving Error resulting in broken maps

So basically if I clone default map, or sometimes this happens with other maps, I can't save it because of an "unknown error". I keep trying to save but the same error appears. I look at my maps in silverlight, and there aren't any. Then I go back to html where maps cannot be edited or deleted and I have a bunch of broken maps. I don't know if this can be fixed but I at least want my broken maps to be deleted, since they clutter my maps section when I go to maps.

Also, this happens 100% of the time with default map, an unknown chance with any other maps, and the broken maps cannot be cloned, edited, previewed, played, etc. They can however be promoted and reported.

Many of my broken maps are hidden too so idk if that accounts for anything, but it's more information.