I’m having a similar issue. I can add one new title manually. If I try adding a second title manually it overrides the first entry. It’s only happens with manual entries, anything I scan with a barcode or search by title is working fine.

Agreed - I however cannot post anything that is not found with a UPC scan or via custom entry, I can input the data but the 'done' button is non functional.

Same issue. You can have no more tban one manually added title in the collection.  Attempts to add any more titles overwrites the others.  That one title can only be added if you turn on the “No UPC” switch even though you have a valid UPC to enter.  You also have no options other than notes.  The ability to include the following items have disappeared: MPAA rating, genre, length of film, and other details.  I have lots of titles, descriptions and photos of covers that are just gone. So much labor has been wasted. is just gone. What has happened?