lightroom n'a pas réussi à sauvegarder le catalogue v13-5. Message récurant à chaque fermeture du logiciel.

Hey, @pigeonneaux. Welcome to the Lightroom Community. I'll need more info to help you figure this out.

Has this started to happen since a recent update for Lightroom Classic, or a change on the Windows OS? Please share the system info from Lightroom Help > System info > Copy & paste into a text document > upload & attach here.

Where are the catalog & the backups stored? On the internal or external drive? 

Try these suggestions:

1 - Temporarily, move the catalog from the to a non-syncing, local folder on your Windows machine.

2 - Launch Lightroom Classic with a new Catalog and check if it backs up correctly.

3 - Reset Lightroom by holding the ALT + SHIFT (Windows) when you launch Lightroom and select 'Yes'.

Let me know how it goes.
Thanks!
Sameer K
(Type '@' and type my name to mention me when you reply)