Lightroom Classic CC device import misses photos

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  • Updated 1 day ago
I shoot RAW+JPG.  After a very long trip doing incremental imports from sdcard, I discovered that some of my images in Lightroom were missing the JPG sidecar, and others were JPG only.  Lightroom's catalog matched what was on internal disk after import.  But a check of the sdcard revealed that, in all cases, both RAW+JPG were present.  The number of affected photos was low, but it is my expectation that a DAM's import feature works reliably.

Since returning home, I have been able to consistently reproduce this issue.  Here is what I've discovered:
  • Affects Classic CC 7.3.x, 7.4, as well as CC 2015 6.0.
  • Always happens on first import after a reboot.
  • Always happens on alternating imports.  Imports 1,3,5 affected.  Imports 2,4,6 never affected.
  • Which file will not be imported is predictable.  It always starts the same after reboot, and counts up.
  • Is not related to "suspected duplicates".  Failure happens on fresh catalogs with and without this import setting checked.
  • Only happens when doing device-based import.
  • Happens regardless of if the device is ejected or not between imports.

I do not believe this to be an issue with this particular sdcard:
  • Command line copy of photos to internal disk always succeeds.  Integrity of copies validated through checksums.
  • A clone of this sdcard resulted in the same import behavior.

Here is an example of the behavior observed:
  1. Reboot
  2. New catalog, import via devices: P1840971.RW2 missing
  3. New catalog, import via devices: OK
  4. New catalog, import via devices: P1840972.JPG missing
  5. New catalog, import via devices: OK
  6. New catalog, import via devices: P1840972.RW2 missing
  7. New catalog, import via devices: OK
  8. New catalog, import via devices: P1840973.JPG missing
  9. New catalog, import via devices: OK
  10. New catalog, import via devices: P1840973.RW2 missing
  11. Reboot
  12. New catalog, import via devices: P1840971.RW2 missing

I've also tried incorporating file-based imports into the mix.  Interesting that the file-based imports succeed, yet still increment the file that will be missing when doing a device-based import later:
  1. Reboot
  2. New catalog, import via devices: P1840971.RW2 missing
  3. New catalog, import via devices: OK
  4. New catalog, import via files: OK
  5. New catalog, import via files: OK
  6. New catalog, import via files: OK
  7. New catalog, import via files: OK
  8. New catalog, import via devices: P1840973.JPG missing
  9. New catalog, import via devices: OK
  10. New catalog, import via devices: P1840973.RW2 missing
  11. New catalog, import via devices: OK

For reference, this is a Sandisk Extreme Pro 64GB UHS-1 card.  It contains a mix of photos and videos from a Canon S100 and a Panasonic LX100.  The file counts in the DCIM folder are:
    174_0501:      10
175_0517:      42
176_0530:      54
177_0703:      10
178_0711:      10
179_0813:       8
180_0814:       2
181_0108:      14
183_PANA:    1994
184_PANA:    1995
185_PANA:    1436
186_PANA:      48
CANONMSC:      11

During my import tests, I've also noticed that Lightroom is inconsistent on the number of photos it says are on the sdcard.  I raise this here as it is related to file scanning.  On the import dialog, the lower left number and "New Photos" number always match, but is a slightly different value each time.  But that value never matches the number shown under the destination folder structure (which is always consistent).

This is happening on OS X 10.12.6.
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Nathan

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Posted 4 days ago

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Polly

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Well presented detail Nathan.   I hope you get the answers you seek.

I'm coming over from Aperture and at the moment the two applications are like chalk and cheese.

I'm very new to LR and to LRCC and find similar errors to those you detailed, but I have not the skills, time and patience to detail them so well . . . .   I'm left wondering if it's me not understanding the system or is it the LR system.   From the details express as you have it's obviously the LRCC system. . . . shame.   Have I entered into LR at a too higher level ?  I wonder.

At this point I'm not even going to attempt using the Cloud between my devices. It's a shame that Adobe has rushed LRCC into the market . . . . they have done neither their name nor their customers any favours. 

Are they listening ?
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Victoria Bampton - Lightroom Queen, Champion

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Hi Polly, welcome to the forum. Nathan's talking about the much older Lightroom Classic and its predecessors, which is different to Lightroom CC - and yes, the naming is really confusing. If you have questions, please feel free to post them on a new thread and we'll be happy to help figure out whether it's a bug or just a misunderstanding.
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Roelof Moorlag

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Do you import with the camera connected or via an cardreader?
Lightroom is rather 'picky' about the connected gear so i would try to make some differences there and test that again. Switch all hardware when you can: Card, Cable, Reader/Camera.

The inconsistentcy on the number of photos ion the sdcard could due to fileformats that Ligthroom does not supports. You could check this with a new card with new (test) photo's.

I'm rather parainoid on my image management and i do always check the numbers. The only time i met problems was when i had hardware problems.
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Victoria Bampton - Lightroom Queen, Champion

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Hi Nathan, that's a great bit of detective work. One more thing to check... if you use the OS X Image Capture app to transfer those photos, do they all transfer? The reason I ask is I saw a similar issue with Olympus a while back, and it turned out to be a OS X bug, so it would be useful to rule that out.
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Gary Rowe

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Great report - well done for documenting it so well. My import issues always seem random, I think I'd better take a leaf from your book and start looking for the pattern!
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Sunil Bhaskaran, Official Rep

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Nathan,
Thanks a lot for the detailed report.
We have fixed a similar issue in Lightroom Classic 7.2 release.
Since you are on 7.3, looks like there can be some cases in which the fix is not effective.
We will try to reproduce it internally. 

Thanks,
Sunil