I had 2 free space profiles with similar (but not the same) titles. The first was from 2018, it only showed me one image (but it seems that there were actually many, it would only show me the first)
The second I created today (3-30-2021) and uploaded about 5 photos, it turns out those were (probably) already in the 2018 FS, because it complained each time about a duplicate, and made me repeat the whole process.
To fix this, I did an FS merge which just made things worse.
The current (and only) FS in my FS watchlist is this Space:Collection of (unidentified) photos from Gustaf Olof Barck 1804-1885.
Please delete this, it has the wrong number of images at the top (says 9, shows me 5, but acts like it has many more than either of those, because I continue to get duplicates if I try an upload. Lets start over, please delete that FS (and any other hidden remnants that may be there because of that merge). Then I can start the whole thing from scratch. thanks, Tom