Lightroom catalogue migration hangs, no error message

[KariJalonen]

I'm migrating my LR Classic (v14.0.1) catalog to LR CC (v8.0), and the migrate hangs at 82%, in the 'Adding Albums' stage. LR is responsive, but nothing seems to be going on. I've read all Help topics I can find without finding a solution.

I'm hesitant to restart the migration again to avoid problems with the migration. What should I try next?

This has persisted now for a few days with no visible progress. I've restarted the migration, booted my mac, and plain old waited at this stage first for ~24h and now for another 10 h. LR is responsive, but with very little activity registering on Activity Monitor (low CPU & GPU usage, little disk use, no discernible network activity). 

My Lightroom CC cloud storage stands at 621 GB, which means that ~53 GB of my photos are still awaiting upload. This figure, too, has not changed since the progress bar got stuck at 'Adding Albums'.

I'm on a 2024 MacBookPro, M3 Pro chip, 18 GM RAM and a 1 TB SSD. My LR Classic catalog weighs in at 674 GB and ~32k photos.

[harriet_9079]

I'm having the same exact. My migration also gets stuck at 82 percent. Must be some type of new software bug they need to fix. Looking for a solution asap!

[GoldingD]

Are any videos in that migration?

[KariJalonen]

Nope, it's all stills - jpeg's, RAW and probably a few TIFF's.