P: Import is creating OS - level duplicate files named (-2) when using Devices rather than Files

Let me add to the battle and say that I too am experiencing duplicate CR2 (RAW) files plus 1 JPEG file for each photo.  I do shoot RAW + JPEG.  Looking back through my library it looks like this started around May 2021.  I am using LRC 11.3 with Camera Raw 14.3

This is the same issue that was never fixed. Lots of people are having the same issue. The issue that was fixed in 11.01 has come up again as of at least 11.2. Its the same photos as the bug in 11.0 so it is the same bug 

The issue from the original poster on this thread was fixed 18 months ago. I suspect you may have a different issue. You should consider starting a new thread with detailed information about your import process and hardware

Include:

• OS Information
• Complete information about all storage
• Import method (Cable, reader, copy to drive and import)
• Lightroom Version
• Step by step import steps to reproduce this
• Power settings for computer and drives

-X are added by the OS when a file in a destination already exists. I suspect a race condition but I have not been able to reproduce this behavior. 

For my particular upload, the card had been formatted, all the images were brand new, and not only did I get -2 but I also got -3! So I imported 300 images and got 900. Ridiculous. Also going into a brand new folder in lightroom. I didn't have this problem a few months ago. My lightroom and PS are fully up to date as well. This started after the most recent update. 2022

Of course you always remember something the second after you post.

During a previous import of this same camera/card I used Image Capture first, to download the images into a holding folder. I did this just to check size the total size (jpgs+raw files) of that day's shoot. Later I imported them into Lightroom Classic.

Lightroom must be seeing a difference between the images that were "moved" from disk, and the images that are currently on the card in the camera. They are the identical otherwise.

I am having this issue with a brand new catalog — brand new camera, SD card, and a MacBook Air that is up-to-date along with all of my Creative Suite apps. Yesterday I imported hundreds of images from my Fujifilm X-T4, via USB-C cable, no problems. Today, it's recognizing many of the same imags on the same SD card as duplicates. When I did a small test import I got the same filenames with "-2". I don't have an SD slot on my Air or else I would try to insert the card directly into my computer.

The only unusual thing that I did in a previous import session was to accidentally import a YEAR/DATE folder within a DATE folder. I moved the images into the correct folder with Lightroom closed and then I relocated the images when I opened the app again. I've done things like this many times in the past, and it worked as expected. Not sure how that would affect the images capture time to disrupt the duplicate check.

PS apps. 

I am still having this problem as of April 2022. I uninstalled the older version of PS, and I am using the latest version of LR. Still getting duplicates. My current workaround is to allow all the photos to load and then I click on "don't import suspected duplicates." Or, if I inadvertently import the duplicates, I search the image set for "-2" and delete all the duplicates.

@Charzzzz did you uninstall older PS apps or older PS LR? And agree, Adobe should just fix this and if necessary build the uninstall in. 

This is still happening as recently as April 5, 2022. It is not fixed. Getting the -2 and now -3 on images. I updated 1000 NEW images and got 3000 in the folder.