Lightroom Classic 7.3.1: HDR - Internal error has occurred (macOS 10.13.4)

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  • Updated 5 months ago
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  • (Edited)
Hi All,

I had effectively and happily been using Lightroom CC Classic on Mac OS Yosemite for a long time, but since I updated to High Sierra yesterday, Lightroom keeps running errors when I try to HDR merge bracketed images.

DETAILS
- MacBook Pro (Retina, 15-inch, Mid 2015), 2.8 GHz Intel Core i7, 16 GB 1600 MHz DDR3
- Lightroom 7.3.1
- Mac OS 10.13.4
- Yes I always shoot on a tripod
- No the problem isn't consistent, sometimes it merges fine, other times it runs the error.
- Yes the photos are all bracketed the same steps - I shoot with a Nikon D810 with a bracketing feature built-in.

Can't see the pattern other than (ironically) when there's a window in the frame, Lightroom seems to have trouble.  It seems to handle 2 bracketed frames okay, but I'm used to bracketing 7-9 frames depending on the room....

As a professional photographer I use this function everyday.  What used to take me about 20 minutes to merge all my photos is now taking me hours because I have to muck about finding which explores might actually merge together.  I have not changed camera settings, Lightroom settings, or workflow.  I am really baffled and frustrated that what used to work is now broken.

I really need to fix this - my livelihood depends on it.  Anyone have thoughts??

Thanks in advance for the help!!!
Dan
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Daniel Seguin

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  • very frustrated.

Posted 5 months ago

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ARTHUR HELD

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I do share your frustration when a working feature is broken in an upgrade, especially one that reaches across product lines.

If this is income producing and time-critical, you might wish to consider switching to a dedicated product. I started HDR before lightroom offered the capability. I evaluated the market and opted for Photomatix from HDRSoft.com. LINK. It is about $100US. I learned to use it well in a couple hours - it is largely preset-driven with the ability to modify the results with sliders. I have tested the LR option, but continue to use 'matix, finding it still gives me better control than Lightroom. 

Best of luck!
(Edited)
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Daniel Seguin

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Thanks Arthur!  Yes, I used to be on Photomatix and liked it a lot.  The only challenge had to do with workflow - needing to shift out from one software to another wasn't great.  Might just have to go back to it though.... time will tell.

Take care,
Dan
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Simon Chen, Principal Computer Scientist

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Was Lightroom 7.3.1 working fine for you prior to the High Sierra upgrade? Can you describe the sequence of events that you have done that leads to the error message? The os update might have changed something on your local machine. Make sure you still have read/write permission to the folder where you read and write the photos included in your HDR photos (including all the parent folders).

Also try reset your Lightroom user preferences to see if it helps (hold down Shift + Option during launch).
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Daniel Seguin

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Hi Simon,

Thanks for your help!

Yes, Lightroom was working fine in Yosemite.  

My process is import my files from my camera and convert them from NEF to DNG on import.  Then, I select the bracketed shots I want to combine into an HDR shot and then select Photo Merge > HDR from the right-click menu.  Just like I've always done.

I'm thinking permissions are fine because the HDR process works on certain bracketed sequences (can't sort out the pattern of what works and what doesn't!)

Tried the user pref reset, no luck.  
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Simon Chen, Principal Computer Scientist

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It seems the error happens on some set but not others? Would you be able to share one problematic set via some downloadable link so that we can confirm the issue on our side? Dropbox or Adobe Creative Cloud sync would work.
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Daniel Seguin

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Absolutely! Here's a set that didn't work.

http://www.danielseguin.ca/clients/real-estate/hdr-problem-images.zip

Then in playing around with the set, I chose only a few images to merge and that worked.
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Simon Chen, Principal Computer Scientist

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Hi Daniel, It is ok for you to remove the shared files now.

I was able to reproduce the failed HDR merge using your original set. What I noticed is that the 9 photo set contains a mixture of NEFs and DNGs. So I went ahead and select all 9 photos and then ran the Library>Convert Photos to DNG... to make sure that all are converted to DNGs. 

After that, the HDR merge succeeds.
(Edited)
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Daniel Seguin

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Wow, that's awesome Simon!  I just tried it and worked on my end as well.  What strikes me is that there's therefore an issue within Lightroom and that it's no longer converting all my NEF files to DNG on import....  Bizarre 

Thank you for solving my issue!