Remove and re-add one of your scan folders. Do you get a warning message?

Same Problem Here. I added a folder that I previously ask MCM to scan. All meta data is still there but not showing up in the list at MCM.
When I updated MCM I had another folder set to scan. Its showing perfectly fine though.

Can someone having this issue please do the above for me? I really need to know what the warning message is, if any.

Additionally, please Media » Clear cache and refresh the list of media.

Same problem here.
Have removed and re-added the folder that isn't showing. No errors and its still not showing. Clearing cache and refreshing didn't help either

Thank you. Is this from today's version (see my signature)?

Yes running todays version. Started in the version before for me though

Are you using nested folders? Since this isn't happening for me, a remote session may be in order.

Nope ..... no nested folders

This is what I get when I Clear cache and refresh the list of media

MCM: Scan folders inspected in 0 seconds.
MCM: No cache detected, building a new one now (this may take a few minutes on a large collection)!
MCM: Scan folders inspected in 0 seconds.
MCM: New titles scanned and loaded in 0 seconds.
MCM: New cache generated and written to disk in 0 seconds.
MCM: Collection listed in 0 seconds.
MCM: Your library includes 0 titles and took 0.2 seconds to load.

@Pete do you have a media folder that was not set to be scanned before the update. Try adding it after update and it wont add contents