Onscreen display in Library doesn't update

Question

Onscreen display in Library module (Loupe view) doesn’t update. That is, if I move highlight from one image to another, the “metadata” panel info does not change. Or, if I change the color or rating of an image, it doesn’t change onscreen. The behavior typically doesn’t begin until LR has been running for at least 10 minutes and it doesn’t end until I restart the program (occasionally it has been fixed by switching to a different module and switching back, but usually that has no effect). This issue has been bothering me since LR version 13 and now persists in 15.4.1. Details: Mac Mini M4 pro running Tahoe 26.5.1. Have tried turning off graphics processor support; no effect. Tried resetting preferences; no effect. Tried disabling all plugins; no effect. Tried removing and reinstalling LR Classic; no effect. What else might it be?

johnrellis · Accepted Answer

That is, if I move highlight from one image to another, the “metadata” panel info does not change.

Try deleting the Helper.lrdata folder:

a) Do Catalog Settings > General > Show to open Finder / File Explorer on the current catalog folder.
b) Exit LR.
c) In that folder, delete the folder "<catalog> Helper.lrdata".
d) Restart LR, and it will rebuild the folder.

The Helper.lrdata folder caches information about metadata, keywords, folders, collections, and other things to speed the performance of LR and it can sometimes get corrupted. In recent versions, LR has used it more heavily to improve the speed of displaying metadata, and there have been a fair number of bugs with it.

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