I can't access LR Classic. It hangs trying to find the catalog on OneDrive.

[gerald_8121]

I created the catalog a few days ago and it worked for a while. I imported about 200 photos and processed most of them. Then the next day I noticed that the photos reverted to the original imports. I then discovered that several catalog files were automatically going to the OneDrive Recycle bin. I was unsuccessful trying to restore these files and I believe the catalog is hopelessly corrupt. I have not been able to open LR Classic the last few days. Should I reinstall Lightroom Classic?  I have about 6,000 photos in another catalog. I do not know if this catalog is corrupt, too. 

[JohanElzenga · Accepted solution]

Reinstalling Lightroom Classic won't solve anything. The problem is OneDrive, not Lightroom Classic. Do not store your catalog folder on OneDrive. There are too many reports about problems like this if you do. 

[Ian Lyons]

As @JohanElzenga has already mentioned, putting the catalog on OneDrive will result in all sorts of issues. Avoid placing the LrC catalog on OneDrive, Dropbox, etc

[gerald_8121]

Thanks, Ian! I think I learned my lesson! Keep all my catalogs on my C drive!