Hello. I updated to LR 12 classic this morning. After it converted my catalog, it crashed stating that the catalog was corrupt. It then repaired it. It then crashed again, stating that the catalog was corrupt.
The first corrupt catalog is 1.6GB. The second is 1.2GB.
It then repaired it again. This final catalog is 300MB and contains zero history. The photos are in their last edited state, but I can not go back to previous steps nor copy settings to another file.
Hi Rick. I'm away from home for the Thanksgiving holiday. Since I no longer have 12.x installed, I would have to take an educated guess. Here's what I propose: when I get back, I export a couple hundred files as a new catalog in 11.5. Then I'll update LR classic and upgrade the newly exported catalog. This will minimize file transfer sizes versus a catalog with tens of thousands of entries, and I can easily provide both 11.5 and 12.x versions, and point out filenames with history steps lost.
I'm tentatively happy to state that, with 12.0.1, I am not having the data loss. I'll keep poking at the catalog and will prepare copies if the situation repeats.
In my case upgrading the LR 11 catalog on a different computer solved the problem. I have LR 12 also on my laptop, a somewhat "cleaner" installation without any third-party plugins etc. Upgraded the catalog to LR12 on this laptop (no problems), moved the upgraded catalog to my main computer. So far no problems with the catalog, no data corruption.
Not sure what exactly caused the problems (maybe a plugin?), but it seems to be a problem with the installation on my main computer, not the catalog itself.
Checking on some older photos (all before 2022) I realize that the complete protocol (history of single steps in developing) is lost. Would anyone have an idea why this happens and if I could possibly recover the protocol?
Arg me too. I'm running Lightroom 12.4. Lightroom came up with a message that my catalog was corrupted and needed to be repaired. Following repair, I lost the develop history on all my photos and can't revert to originals. This is super frustrating. I'm constantly makeing changes and have over 126,000 photos in my catalog so reverting to my last backup is going to be a mess 😞
Last week's backup has my history intact, but duplicating all the changes I've made is going to take forever. I've been using Lightroom happily for 13+ years but it seems like there's been one catastrophe after another since upgrading to the subscription version.
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