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A
andys98318584
Inspiring
August 17, 2022
Answered

Preview corruption in 11.4.1 Lightroom Classic on M1 MacBook Pro with MacOS 12.5

  • August 17, 2022
  • 3 replies
  • 639 views

Hi, 

 

I've been seeing repeated issues with preview corruption in Lightroom Classic when working with modest numbers of photographs (300+). This used to be very frequent after importing say 200 images in previous versions of Lightroom. Recently I've been working with a collection (not smart) of 2000 photos which I've been displaying in secondary display grid mode (which could desperately do with a metadata panel BTW) and I've watched as my previous slowly dissapear. Removing the preview and smart preview folders resolved the issue for a few minutes. I have attached photos of the hanging dialog "Optimizing previews catalog" that never finishes and an example of the grid review with missing previews after exiting, deleting previews, restartin, running create smart previews and working with LRC for a few minutes. This is quite a serious issue as it makes working with large sets of photos very tedious.

 

 

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Correct answer andys98318584

So far things seem a lot more stable on 11.5. 

3 replies

A
andys98318584AuthorCorrect answer
Inspiring
August 18, 2022

So far things seem a lot more stable on 11.5. 

A
andys98318584Author
Inspiring
August 17, 2022

... this is now happening every 10 minutes or so when working acrively across Map, Book and Library views. Removing the previews lrcat fixes the issue for another 10 minutes or so.

dj_paige
dj_paige
Legend
August 17, 2022

Hard disk malfunction. Run deep diagnostics on your hard disk where the previews are located. Make sure you have backups of all documents (Lightroom Classic or otherwise) that are on that disk (which, by the way, you should be doing regularly, rather than once for this issue).

 

Alternative: move your catalog file somewhere else on that hard disk, or to another disk.

    A
    andys98318584Author
    Inspiring
    August 17, 2022

    I have verified the integrity of my internal solid state drive. I also have full backups. I'm not at all convinced this is a hardware issue. Since it only occurs with large numbers of photographs I'm of the mind it's a threading / race condition. Apparently 11.4 was supposed to fix an issue just like mine. I suspect it wasn't a full fix. 

      A
      andys98318584Author
      Inspiring
      August 17, 2022

      See https://community.adobe.com/t5/lightroom-classic-discussions/problem-with-thumbnails-in-develop-mode/m-p/13115261#M284776 when I first logged a related issue.

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