Enormous file size

  1. Create empty project

  2. Add Infinity Blade Warriros content from launcher

  3. Hover cursor over Overview.umap, for me it shows as 15.999EB

Also, if try to delete it from Content Browser editor stucks.

Can you reproduce this?

I have this too, but I created a new blank map. After putting stuff in the level bp and compile-saving, it turned into a reasonable file size (KB) so I think it may just be a default number until it there is something in the level, or if the level has not been loaded and compiled for the first time.
Engine: 4.10.1