Dollar Sign in filename?

I’ve noticed some photos in the library have a dollar sign in the filename. I assume this is added by PS during import, but what does it signify?

Oops! That sounds like a bug. Can you DM me the original path and the library path for that asset? If you visit that asset in PhotoStructure, open the info panel, and take a screenshot of that.

Looks like the problem is on my end, i.e., “me.” Apologies for sending up a flare prematurely.