showing in "Downloaded" but not in "Available" means xbvr does not see the volume that your videos are on. Most likely reason is you have your videos on external drives that may not be connected or the drive letters/paths have changed?

I thought I might try starting over by removing the folder from Storage and letting it re-scan everything. Well, that removed everything from the "Available Now" section, but it's still showing all my files in the "Downloaded" section, as well as under "Files". I don't want to delete the files, so how can I get XBVR to start over with scanning my files in the hopes that it will realize that they're all on the same local volume and, thus, should all be available?

Was facing the same problem, a solution that worked for me:

1. I didn't change any xbvr settings, and used file explorer to rename my directory with all vids (e.g. /pathname/VR) to something temp like (/pathname/tempVR).
2. On xbvr, I rescanned the /pathname/VR directory (options -> storage -> rescan)
3. Back on the file explorer, I changed the directory name back to original ( /pathname/VR)
4. Finally on xbvr, I rescanned /pathname/VR again.