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Lightroom Classic glitch

pr4photos
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p.1 #1 · p.1 #1 · Lightroom Classic glitch

This happens far too often.
I open a load of raw files, and I start going through them, processing them. I click from thumbnail to thumbnail, and normally (as it should) the next image shows on the screen ready for me to process. But lately - maybe its the latest version of Lightroom, I find I can click on a thumbnail at the bottom, but the main image doesn't change from the last image I had just processed. This happens probably one in ten images. I have to click to a different thumbnail, and then click back to the thumbnail I want, and it will then show the correct main image

Aug 01, 2023 at 12:03 PM

schlotz
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p.1 #2 · p.1 #2 · Lightroom Classic glitch

Might be helpful to provide what OS you are using, version of LR and possibly the specs of the computer you are using.

Aug 02, 2023 at 05:59 AM

pr4photos
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p.1 #3 · p.1 #3 · Lightroom Classic glitch

Ah ok. Latest Mac operating system. Mac mini 2018 3.2 GHz 6-Core Intel Core i7 32gb RAM
And Lightroom 12.4

Aug 02, 2023 at 08:05 AM

jeffbuzz
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p.1 #4 · p.1 #4 · Lightroom Classic glitch

Have you tried increasing your cache?

Aug 02, 2023 at 10:36 AM

pr4photos
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p.1 #5 · p.1 #5 · Lightroom Classic glitch

Just looked, and it's set to 10gb. I've purged it, so will see if that makes any difference

Aug 02, 2023 at 12:02 PM

schlotz
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p.1 #6 · p.1 #6 · Lightroom Classic glitch

Did the cache purge help?

Aug 03, 2023 at 04:29 PM

pr4photos
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p.1 #7 · p.1 #7 · Lightroom Classic glitch

schlotz wrote:
Did the cache purge help?

It does appear to have worked. Fingers crossed it behaves itself. Thank you

Aug 04, 2023 at 03:52 AM

schlotz
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p.1 #8 · p.1 #8 · Lightroom Classic glitch

Good to hear. FYI, my cache is set to 50gb.

Aug 04, 2023 at 05:19 AM

Alan321
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p.1 #9 · p.1 #9 · Lightroom Classic glitch

10GB is not much of a cache, IMO, but it depends on your system and your needs.

LrC will probably never use all of its cache. It seems to use most of it (70-80%) and then avoid using the rest in case it is needed later on. i.e. it keeps some in reserve for ... whatever.

Make your cache bigger. If LrC does not use 70% of it then it is already big enough. If LrC does use 70% of it then you can make it bigger so that it will use more.

If you think the cache is cluttered up with now-unnecessary stuff then purge it and start over.

I have my cache on a speedy NVMe m.2 SSD and so it quite useful. On a slow HDD it may not be so useful. The more you flit about your image collection the more you might benefit from the cache - e.g. when working on images by subject rather than by date.

Also, you can build new previews in bulk so that LrC utilises multiple CPU threads (all of them if the data feed is fast enough) to greatly speed up processing. Again, this is most beneficial if you are using speedy SSDs instead of slow HDDs, and also if the data storage is linked directly to the CPU via PCI lanes (a computer hardware matter, not an LrC matter).

Aug 13, 2023 at 03:27 AM

Zenon Char
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p.1 #10 · p.1 #10 · Lightroom Classic glitch

I follow this pretty closely and it talks about the cache.

https://helpx.adobe.com/ca/lightroom-classic/kb/optimize-performance-lightroom.html

Aug 14, 2023 at 08:18 AM

Zenon Char
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p.1 #11 · p.1 #11 · Lightroom Classic glitch

One thing about that Adobe article. They say to turn Lens Corrections off when doing intense editing. Since the memory leak fixes and performance improvements I have found that LrC just flies if you leave them on. I've done well over 50 edits including masking and not even a burp. No bloatware any more. I'm sure turning it off would help.

Also if you use Adobe Denoise AI Eric Chan recommend this.

Order matters. I recommend applying Denoise early in the workflow, before healing and masking. AI-driven, image-based features such as Content-Aware Remove and Select Subject can be affected by noise, so it’s best to use those features on a clean starting point. If you do run Denoise on an image that already has Content-Aware Remove settings or AI masks, Denoise will automatically update those spots and masks. This is handy, but be aware that the content of those spots and masks may change unexpectedly, so it’s best to review the results carefully.

Source

https://blog.adobe.com/en/publish/2023/04/18/denoise-demystified

Aug 14, 2023 at 09:34 AM


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