Issue: Scenario A
After making first develop edits to unworked RAW files in develop module, library previews only show updates for half a second before changing back to the old embedded preview. Attempting to manually build standard sized previews shows error "already exists". The previews only show the current updates after relaunching Lightroom Classic, or after entering develop module to make secondary edits.
Scenario B
After pasting develop settings to unworked RAW files, library previews are not automatically generated, even after entering and exiting develop module without making further edits. Must then manually generate standard-sized previews.
Scenario C
After pasting different develop settings to worked RAW files, previews are not updated. Attempting to manually build standard sized previews shows error "already exists". The previews only show the current updates after relaunching Lightroom Classic, or after entering develop module to make secondary edits.
Provide Lightroom Classic version: 11.3.1 Provide OS and version: Windows Pro 21H2
Provide good steps to reproduce the behavior:
Scenario A
Import RAW files to library
Enter develop module for an unworked RAW file
Make develop edits for the first time
Enter Library grid view, updated preview shows for half a second then switches back to the old embedded preview. Loupe and compare view also shows the old embedded preview.
Build standard-sized previews error says "already exists"
Must either relaunch Lightroom or enter develop module to make additional edits, for the preview to update
Scenario B
Import RAW files
Copy and paste develop settings to unworked RAW files for the first time
Previews not updated, shows the old embedded preview
Enter develop module and exit without making further edits, previews not updated
Must manually build standard-sized preview
Scenario C
Copy and paste different develop settings to worked RAW files
Previews not updated, shows the old preview in grid, loupe, and compare views
Build standard-sized previews error says "already exists"
Must either relaunch Lightroom or enter develop module to make additional edits, for the preview to update
Expected result: Lightroom Classic should show updated previews Actual result: Lightroom Classic shows old previews
[Moved to bugs by moderator]
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