Lightroom 15.3 Merge to HDR not working properly

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​@mikeb91431815 15.4 is suffering from the same issue. I just rolled back to 15.2.1, however, 15.4 just made me upgrade my catalog so I am now screwed.

The catalog upgrade saved away the previous catalog in the subfolder Old Lightroom Catalogs in the catalog folder.  So you can roll back to 15.2.1 and use the previous catalog.  You’ll lose the work you’ve done since the catalog upgrade, but you can move the develop edits and metadata changes you made in the upgraded catalog back to the previous catalog by doing Save Metadata To File in 15.4 and then Read Metadata From File in 15.3.  It’s tedious but may be your best option.  Let us know if you need detailed steps.

15.4 is suffering from the same issue. I just rolled back to 15.2.1, however, 15.4 just made me upgrade my catalog so I am now screwed. As a full-time working professional this is extremely frustrating that there have been multiple updates since this was brought up with no fix and now I cannot rollback my catalog. 

I have the same issue recurring over the last month or so. It has not resolved with updating Mac, then reinstalling the latest version. I have to go back to 15.2.1

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​@JW_JW Hello, is there any resolution to this yet? Every time I try an HDR merge of 5 bracketed images, LRC crashes.

With the original post in this thread, the problem was specific to the poster’s machine -- others weren’t able to reproduce the problem. There hasn’t been any resolution posted here yet.

When you say “crash”, do you mean that LR hangs, or does it exit entirely?  If it exits entirely, do you see the Adobe crash dialog asking to submit the crash log? If so, be sure to enter the email address associated with your Adobe Id, which will allow Adobe to associate the crash report with the thread here.

Also, please do the LR menu command Help > System Info, click the Copy button in the upper right corner, and paste into your reply here, so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

Hello, is there any resolution to this yet? Every time I try an HDR merge of 5 bracketed images, LRC crashes.

Hi ​@John_Gerard ​@Ralf23454699c6x8,

Thanks for the detailed updates. Before escalating further, please try one key step: Try HDR merge in a new test catalog in v15.3, as we are unable to reproduce on our end.

Also, quick check, if you haven’t done so earlier, try temporarily disabling third-party plugins (ON1, Topaz, etc.), then test.

If the issue persists on 15.3,  please share a short screen recording of your entire workflow leading up to the stall.

Thanks again for confirming the sample files work elsewhere. Once we confirm behavior after disabling plugins/new catalog, I can take this forward with the product team.

Regards,
Anshul Saini

I had the same problem. Reverted back to 15.2.1 and it’s all working again, no more problem with HDR. 

Thanks ​@johnrellis and ​@Ian Lyons , I’m not sure what combination of settings & hardware are leading to my problem when I move to LrC 15.3 but I’ll need to tinker with things when I have more time.  I’ll go back to 15.3 and reset the preference file as suggested earlier.