Hi Caroline. Below, please find a Dropbox link to a test project I've just created:
At first, the search was running fine, but as I was adding content, closing & reopening it, the search bugged out again.
I've also noticed that on some of my previous projects, none of the search functionality works - not even CTRL-F (which was normally my "last hope" at finding assets, with the search bar and bin query not working). It seems that when you put something into the search box, it will find 1 letter or number associated with the file name, but no more ... it's quite bizarre.
Anyhow, happy hunting! Really hope you guys can solve this. Thank you!.