Thumbnails overexposed - then adjust

[sgearylen]

I've used Lightroom Classic for years and only encountered this issue a month or so ago. All images look very overexposed at first - in the thumbnail, and when I select the image. I have to wait 3-5 seconds (no action taken on my part) for the view to change over to the "real" coloring. Reference attached video for examples.

Any idea what is causing this or how to fix? It's driving me insane - editing takes so much longer! This is the same for imported phone photos or camera (Sony mirrorless).

App version: 13.1

Platform/OS: macOS Monterey v 12.2

[GoldingD]

Reference attached video for examples

No videos came along with your posting. Did you post via adding a post, or via e-mail. The e-mail method will not send attachments along with the posting.

[GoldingD]

Platform/OS: macOS Monterey v 12.2

Using Google, to search on MACOS version history, and then on Monterey, shows that v12.2 is fairly old and out of date. Any reason you have not updated to say 12.7.2? Now I can understand that you may not be able to upgrade to say Ventura, but any reason to not update?

On MACOS the GPU drivers receive updates via MACOS  updates. Unlike Windows OS where you simply download a new driver from the GPU Mfg. Now those GPU drivers are very important now that Adobe uses the GPU so much. And an out of date driver can be an issue.

[GoldingD]

All images look very overexposed at first - in the thumbnail, and when I select the image.

Last annoying inquiry. And yes I intentionally asked these separately.

Does that happen just after Import, or after already having accomplished some develop edits and returning back to LrC after closing?

[sgearylen]

Thanks for the quick response, @GoldingD ! Video attached now - it was too large before, I didn't realize it didn't upload.

No particular reason that I haven't upgraded my OS - will try that now. This happens just after import and while I originally thought this occurred with both camera and phone photos, it appears to only be with iPhone photos after all?

This happens just after import - not after initial edits. If I move away to edit other photos and come back, it does it again. I can see it "reset" to the overexposed thumbnail after ~30s or so.

[GoldingD]

Watching that video, it looks like you have several images that you imported, and accomplished some edits on, I can notice the Develop Module sliders as not being at defaults. And when you click on one, it reverts to a pre edit preview, then reads the mods and presents the post edit preview.

You are in the Develop Module, so the previews are not the Library previews, but via the Camera RAW CACHE (in part) but I do  not think the Camera RAW CACHE is the issue. (/edit/apparently it was the Camera RAW CACHE)

/EDIT/I stand corrected on my error, following is just wrong/

Makes me think an issue may exist with the .lrcat-data file. Perhaps a rights issue.

https://helpx.adobe.com/lightroom-classic/kb/catalog-faq-lightroom.html

I may be very wrong, that lrcat-data file might only involve AI masking like AI Sky, and not general edits.

Thinking of other posts in this community. Thinking at leas one member advised deleting the lrcat-data file (careful, get correct file), then seeing what would happen (as in LrC would recreate the file, and in doing so would have to have rights to the new file)

You might want to search the community on that.

 

[JohanElzenga]

I may be very wrong, that lrcat-data file might only involve AI masking like AI Sky, and not general edits.

By @GoldingD

The lrcat-data file does not contain general edits, but it does contain any LUT you may have applied via a custom profile that contains such a LUT. It also contains AI-masks (just the mask itself, not the edit settings), but not normal masks.

[GoldingD · Accepted solution]

Just to double check something. your Camera RAW CACHE setting, how large?

in my example below, please excuse my value, yes mine is a bit large. Just using this screenshot to indicate where to look

Might not be the issue, but if it is the small default 5 GB, perhaps increase to 20 GB or more.

You might also want to look at the folder containing the Camera RAW CACHE (as defined in the above) and make sure it is getting accessed by LrC (as in not empty)

Oh, and come to rethink a bit, the value in preferences for the Camera RAW CACHE, and the value (size) you see when you actually look at the folder on your hard drive. That Camera RAW CACHE is not getting full perhaps? Typically not.

[sgearylen]

Upping the cache setting helped! Thank you, thank you!! 

[GoldingD]

Upping the cache setting helped! Thank you, thank you!! 

By @sgearylen

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Community How-To Guide - Tips & Best Practices | Adobe