I've noticed that whenever I have dwellers returning from exploring I have 2 sell some outfits and weapons even thoough once they enter I have as much as 20-30 spaces left in my storage. Before anyone says I am sell to many items I have sold only as many items as needed to have no items in red yet after that it tells me I have extra space. anyone able to tell me why I can't use the max spaces in my storage rooms or if you have noticed the same problem.
I had the same thing happen yesterday. And to top it off, I had a few rare weapons like the infiltrator and some laser rifles that disappeared when I collected my dweller, yet I still had over 20 spaces left afterwards.