Lightroom CC: Very very slow migration from Lightroom Classic

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  • Problem
  • Updated 1 week ago
  • (Edited)
Since 3 weeks I'm trying to migrate my LR Classic catalog to LR CC on my iMac. I have 80'000 photos at around 800GB. The catalog migration of the first 40000 photos went at reasonable speed within 1 day - but since the last 3 weeks it has only migrated additonal 17000 photos. And this is only migrating the catalog. Uploading the photos to the cloud is even slower - only around 3500 photos have been uploaded to the cloud during the migration process.
I have stopped and restarted the migration process a couple of times by closing LR, but without improvement.
I'm considerably frustrated about this migration and really need help before I trash all this.
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Carsten Horst

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  • frustrated

Posted 3 weeks ago

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Rikk Flohr, Official Rep

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What is the free space on the disk where your default Pictures folder is located?
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Carsten Horst

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I found the root cause of the problem: I stored my photos on my NAS and that slowed down the process dramatically. I moved all photos to a local attached HD and re-started the migration process. The migration completed after one day and the sync of all photos was completed after 3-4 days.
So finally a success of the migration.

Now I realise a different problem:
All photos are migrated, but not all photos are associated to their corresponding album in the web/iOS version. Some albums are empty, others only contain a subset of the photos they should contain. In LR CC Desktop on my Mac everything is correct.

Is there anyway how I can reforce a sync of the album association to the cloud or any other efficient way of re-assigning the photos to their albums?
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Carsten Horst

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Desktop App: 80463
Web App: 80463
Mobile App: 80463

The album list is very long, I attached a screenshot of small part. One album I'm looking at e.g. has 141 photos in the desktop app and only 60 in the web / mobile app.

(Edited)
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Rikk Flohr, Official Rep

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Carsten, I've heard back from the engineers and they tell me your issue is known but not common. We have a fix coming in an upcoming release. 
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Carsten Horst

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Hi Rikk, thanks for your feedback. Is there any outlook when this fix will be available and if I would need to re-do the whole migration or whether this can be applied to my current set?
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Rikk Flohr, Official Rep

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No ETA on the fix - unfortunately. 
On the plus side, is when implemented it should fix itself without a complete redo. 
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Carsten Horst

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Thanks, sounds promising. Looking forward to the fix release !!