Lightroom Classic crashes on export of JPEG's

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  • Updated 17 hours ago
Technical Information: Lightroom Classic Version 8.4.1
Operating on an Apple MacBook Pro 2016, 2.6 GHz Quad-Core Intel Core i7, 16 GB 2133 MHz LPDDR3 With macOS Catalina 10.15

Description: Normally exporting jpeg's as I do, and it crashes for no reason. I have to foce quit the application and hard restart the computer for me to be able to boot Lightroom again. Very strange issue. My friend is having the same issue on his older MacBook. This is incredibly frustrating as I need to export many photos....
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Will Sullivan

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Posted 10 months ago

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Rikk Flohr, Official Rep

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Will

I am finding no crash reports under your email address you've registered at this forum.  Are you getting a crash dialog? Is it an Apple dialog or an Adobe dialog?  Are you submitting the report with your email? Do you use a different email than that with which you registered here?
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Will Sullivan

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Lightroom is not crashing. It's just freezing up on Mac and It doesn't generate a crash report because you have to literally restart the computer for it to reboot the application. Haven't found any way around this.
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Rikk Flohr, Official Rep

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Would it be possible to get your Mac in the non-responsive state and then grab a process sample to send to us?
See: https://discussions.apple.com/thread/7959486
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Simon Chen, Principal Computer Scientist

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Did you submit the crash log to Adobe? Is it a crash or a hang? Does it happen on any set of photos? Is this new? Does Lr crash during export before upgrade to Catalina? Does 

Have you checked your hardware RAM/disk? I could very well be a hardware issue it seems.
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Carlos Cardona

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Maybe it's a corrupted preference in your Username/Library folder? To reset your LR preferences: 

1. Close Lightroom. 

2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom. 

3. Overwrite the Preferences when prompted by the dialog. 

4. Close Lightroom. 

5. Restart Lightroom. 

Go to your Lightroom Classic Preferences (in the LR menu) and go over them and reset any that got changed from the way you want them. When I did it there weren't many changes that I needed to reset.

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Carlos Cardona

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Onyx for Catalina is out! https://www.titanium-software.fr/en/onyx.html

Download it, run it, people with crashing Macs!

In Onyx run almost everything in the Maintenance tab, deselecting things you may not want deleted, like Launch Services . Hit the "Options" button and deselect more stuff like Cookies & Other Site Data, Browser History, Form Values, etc. If you don’t know what something is, look it up, or just deselect it, then hit Run Tasks. After it's done it will ask for a reboot.
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Riccardo Delfanti

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Same problem! I hade the same problem month ago before upgrade to Catalina, I had Lr 9 and MacOS High Sierra. After updated to Catalina the problem was solved until today after 5 days on inactivity on my mac, the problem return.
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Rikk Flohr, Official Rep

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I do find a single instance of a crash report for your email that you used on this forum.  Have you experienced more than one crash?  Do all of the crashes show an Adobe dialog or are some of the Apple dialogs?
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Riccardo Delfanti

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A lot of crashes... sometimes an apple dialogs , rarely an adobe one, the most of the time nothing or a system reboot
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Victoria Bampton - Lightroom Queen, Champion

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System reboot sounds more like a hardware or low level OS issue.
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Rikk Flohr, Official Rep

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I would agree with Victoria. The symptoms you describe sound like a hardware failure. It might be prudent to have your machine checked out. 
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Victoria Bampton - Lightroom Queen, Champion

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FWIW, my iMac was randomly rebooting (not just in Lightroom) and it passed the Apple Hardware Test... but when I came to do a clean OS install, I tried to format the internal drive and even that rebooted itself. I was eventually able to reformat by booting from the recovery partition and it's behaved perfectly ever since.
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Riccardo Delfanti

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Just a minute ago Lr crashed, while I worked on the developed mode and without an Adobe dialog but only an Apple dialog
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Simon Chen, Principal Computer Scientist

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On macOS, launch the console app, on the left pane, there is a Reports category on "Crash Reports", find the most recent Apple crash report and see what it says. 
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Riccardo Delfanti

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I found a crash of Lr ar 1:58 AM but I didn't use the Mac, and Lr was opened
(Edited)
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Ernst Dobber

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Same problem here! LR9 crash without dialogue while exporting to jpg. MacBook needs to restart. Catalina 10.15.1
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Rikk Flohr, Official Rep

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Ernst, I find no crash reports submitted against the email address with which you're using on this forum. Is your Adobe ID different? Do you receive a crash dialog? Is the dialog Apple's or Adobe's? 
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Ernst Dobber

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Hi Rikk, the crash returns repeatedly when I export to jpg. The first few pictures are exported, and then LR hangs. The access to the external SSD (Samsung) is also stalled and only returns after restart of the computer. There's no crash dialog.
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Rikk Flohr, Official Rep

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That sounds like an Application Hang and not a crash.  If you export to the local drive does it hang?
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Guy St-Pierre

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I had the same problem on LR Classic when I upgraded to Catalina  from 10.14. Very very frustrating, 75% LRC freezes when exporting, no matter the number of files to export. Always had to do a FORCE QUIT to recover. I tried the trick of resetting the LRC preferences as explained by Carlos Cardona above and so far it seems to do the trick. If it happens again, i'll report back.
Guy S.
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Guy St-Pierre

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false hope. It started again. I really hope Adobe get their act together on this issue. I can confirm that no core dumps are generated in /cores:

27:cores Guy$ ls -lra

total 0

drwxr-xr-x  22 root  admin  704 25 Jul 23:08 ..

drwxr-xr-x   2 root  wheel   64 29 Feb 01:11 .

27:cores Guy$ 


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Carlos Cardona

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Guy: did you run Onyx, as I suggested above in my comment?
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Guy St-Pierre

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Yes, I installed the Catalina version. I ran the scripts in the maintenance tab with the default selections. No change. I also ran disk doctor / first aid from Apple. LRC has full-disk access in system preferences. No change. It really look like an issue with LRC itself, wouldn't you say? Never had this issue with 10.14. Do you have any other recommendations Carlos?
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Guy St-Pierre

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one observation: the freeze happens after the new directory has been created using the "choose" button in the export menu (before pressing the final "export"  button)
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Simon Chen, Principal Computer Scientist

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A video showing your steps would be helpful. That seems to be an odd moment to hang before the real export work starts.
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Guy St-Pierre

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Good idea, video attached. Not great quality on youtube, so I put the full sequence of actions here. Sequence is:

 insert SD card / launch LRC / import photos / develop / select all developed / right click & select export ... / click choose / create new dir / click create (or cancel) / LRC freezes. See video.
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Carlos Cardona

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 Guy: can you export WITHOUT creating a "directory" first (most Mac users say "folder"). What if you create it in the Finder (in the correct location) first, then just select it with "Choose". If you find that creating it is the issue, it sounds like either a permissions issue, or directory damage, or a hardware issue with the device (external drive?) you're try to export to.
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Guy St-Pierre

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I use a fusion drive 1 TB internal to the iMac. Not external. Never had an issue with the sequence before until Catalina. Of course if I create the folder in finder before exporting there is no problem. But the point is that Catalina and LRC don’t work well together and something broke. It’s not the hw, it is a recent iMac 27. Quite a few people complain about this exporting issue on different forums. Thanks for your help Carlos. Perhaps Catalina has an issue with fusion drive...

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Simon Chen, Principal Computer Scientist

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Make sure you have grant Lightroom full permission to the parent folders where you are creating the new output folder. Check out https://helpx.adobe.com/lightroom-classic/kb/macos-catalina-compatibility.html. There is likely some error condition happened when "Choosing" the new folder created.
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Guy St-Pierre

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Done that already, full disk access and full file and folder access. Thanks.
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Simon Chen, Principal Computer Scientist

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That's odd. I tried to follow your sequence and I could not reproduce the issue. I am on macOS 10.15.1 and LrClassic 9.3.
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Guy St-Pierre

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It's on and off, in my case about 70% of the time it misbehaves. I have seen it on 10.15.5 and later. I'm currently on 10.15.6 and LRC 9.3. I upgraded to Catalina from Mohave quite late because I wanted to keep using Aperture which I dearly miss it. LRC is good (and faster)  except for this annoying exporting issue.
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Guy St-Pierre

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Somewhat of a good news... I found a workaround that works. Same sequence as before except that you select 'choose folder later" from the pull-down menu. No freeze-up anymore.  Clearly a bug in Aperture that did not exist before.

Thanks all for your help, I hope someone from Adobe LRC team is monitoring this forum to bring it back to Adobe.
Guy S.