I'm working for a friend who owns a photography business. I'm culling and editing for her, but we live seven hours apart.
She has been sharing catalogs with me for culling/editing purposes.
1. She sends "5-29-2022 Jacqui and Evan - TO CULL" from her computer (that has all original files)
2. I open catalog, cull photos, save a collection within catalog called "Culled", and send her back the .lrcat "5-29-2022 Jacqui and Evan - CULLED"
3. She opens catalog and makes edits to 25% of photos. Saves and sends it back to me as "5-29-2022 Jacqui and Evan - TO EDIT"
4. I open catalog and begin matching her edits. In theory, I would do the same thing as culling and send it back to her as "5-29-2022 Jacqui and Evan - EDITED"
However, the catalog was corrupted in between editing sessions (I have to cull/edit in the early mornings before my infant and toddler wake up). Here's the conundrum: if I exit Lightroom and shut down my computer in between sessions to avoid corruption, I won't be able to open the catalog back up because I receive the "file not found" message (all original files are on her computer/external, not mine). If I keep my lightroom open, I risk corrupting the catalog because I haven't properly shut my computer down for days.
What makes you conclude that the catalog is corrupted? Does Lightroom report it is? Or do you conclude this from the 'file not found' message? In order to edit her images while the originals are on her computer, she would have to generate smart previews for them and include these in the transfer. You cannot make edits if you do not have the originals or smart previews. Did she do that?