Lightroom Classic: Synchronise duplicates issue

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I have a folder in LR Classic 7.5 with tells h a 460 photos in it. If I Synchronize the folder it tells me there are 165 photos to sync. I select Synchronize and it comes back with none as it says the 165 are duplicates. How do I fix this? I have no idea how many are really duplicates and how many are not?
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Dave Roberts

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Posted 2 months ago

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Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

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Check the Show import dialog before import checkbox and you'll then be able to see which ones it would try to import, and toggle the don't import suspected duplicates checkbox so you can see which ones are dupes.
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Dave Roberts

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I do this, it shows a blank import screen unless I click to all photos and then all 165 photos are shown but are misted out.
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Victoria Bampton - Lightroom Queen, Champion

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And if you turn off  "don't import suspected duplicates" checkbox in the File Handling panel, do some become available to check?

If you look in Finder/Explorer, how many files are in that folder?
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Dave Roberts

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OK, thanks, I have turned on "don't import suspected duplicates" and it it says no sync needed. But why does it think the files in the folder have imports to do and then decide they are duplicates? There are 468 photos in my LR folder and 411 on desk, but that I guess is because of virtual copies.
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Victoria Bampton - Lightroom Queen, Champion

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Synchronize Folder doesn't run the duplicate check - that only happens when you go to the Import dialog or the import actually runs as part of synchronize. That's why it sometimes gives the wrong number.
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Dave Roberts

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I may have a answer to this, I might be barking up the wrong tree... I discovered that some of the photos in this folder were not only Apple .HEIC files but were 'Live Photos'. I think LR is seeing them as multiple images and then decides they are duplicates. Converting the .HEIC to single static photos has fixed it!