"Don't import suspected duplicates" isn't working properly

[riccardozulian]

I'm trying to import photos from a directory, but I've noticed that isn't working properly. LR doesn't catch duplicates even if they are  the same file, same size, same capture time: I've attached a screenshot comparing the photo that exists in LR and the one which it is trying to re-import. What's wrong?

[AxelMatt]

The modification date differs between the two pictures. So for Lightroom they are different pictures.

[riccardozulian]

I've understood that was all about the name, creation date and size. Does the modification date matter as well? BTW, that's something about the import process, I haven't modified the photo. IS there a way to solve this? I've 3000 photos with probably the same problem

[riccardozulian]

Not sure if this is related, but the photo in LR has a hint, which displays the following:

[Just Shoot Me]

Are these 2 images in the same or different folders? If in different folders, which they must be as 2 files with the same exact name can NOT be in the same folder, then that is part of your problem.

LR sees them as different files not only because of the modify date/time but also they are in different folders.

I just did a test by copying a folder with a few images in it to another root folder on the same drive. No modifications of any type was done to the copied files and LR would not allow me to Reimport them.

So it must be the different folder and the modify date that is tripping up the option to Not import suspected duplicates.

[riccardozulian]

Thanks for the input. Using the same two photos, I've created a new catalog from scratch. In this case LR is detecting the second photo as a duplicate of the existing one. I guess the problem is in the current catalog I'm using. Is there a way to rebuild it?

[cmgap]

If you are able to identify the 3k duplicates by camera type, date or other filterable criteria can you remove them?

[Mamie27175788jfif]

Did anyone find a solution to this?

In one of my work catalogs LR, is trying to import files that are certainly duplicates (all files have 100% matching metadata including camera exif data, creation and modification dates, they are on the same drive but differnt folders). 

I tired what the original poster did (testing the files in a new test database) and had her same result which indicates a cat file issue: I created a new catalog, first imported the original file, and when I tried to import the duplicate, LR would not allow it this time (it did the right thing in the new database). 

I also tried zapping the PRam and restarting, disconnecting drives, and starting up the old catalog again and connecting the drive. The old/main catalog file still has this problem.

I have years of work, edits, colorgrades, etc. and tens of thousands of picures from around 10 professional shoots on this catalog so it's a big problem (I can't not just start a new catalog). 

At work I'm pressured to use CaptureOne and the only reason I don't for post production is Lightroom's intergration with Photoshop.  This LR duplicate issue is a massive problem for me now as I'm trying to clean up over a hundred thousand possible duplicates from drives before wiping them. 

[sakarik47440109]

The detection of duplicates does not understand time zones. If you reimport using a different time zone, none of the duplicates are detected as such.

This is probably a different case from what you have, but I think it's still worth mentioning.

[JohanElzenga]

Please check the dates of the thread messages before replying to them. This question was asked in November 2022 (and the rest of the thread is even three years older than that), so I do hope the person who asked this wasn't still waiting for an answer!...

[sakarik47440109]

Yes, but when numerous people are searching the Internet for answers in the future years, the dates are not that important.

[JohanElzenga]

They usually are, because problems with version say 7 are unlikely the cause (and so the answers are unlikely the solution) if you have a similarly looking problem today with version 12. I have seen people trying to install an old and incompatible plugin, because they thought they found the answer to their current problem in a three years old thread. I think Adobe should lock threads after a certain period for exactly that reason, so at least it remains clear that it's an old thread that is probably not relevant.

[Rikk Flohr: Photography]

You’ve posted to a very old thread. It is highly unlikely that the issue described in this thread, though not impossible, is the same issue which you are currently experiencing. Rather than resurrect an old thread that is seemingly similar, you are better posting to a new thread with fresh, complete information including system information, a complete description of the problem and step-by-step instructions for reproduction. 

In the unlikely event the issue is the same, we will merge you back into the appropriate location. 

Thank you!

@JohanElzenga  we are start

[Rikk Flohr: Photography]

You’ve posted to a very old thread. It is highly unlikely that the issue described in this thread, though not impossible, is the same issue which you are currently experiencing. Rather than resurrect an old thread that is seemingly similar, you are better posting to a new thread with fresh, complete information including system information, a complete description of the problem and step-by-step instructions for reproduction. 

In the unlikely event the issue is the same, we will merge you back into the appropriate location. 

Thank you!

@JohanElzenga  we are starting to lock threads pre 2020....