Just tried to HDR 5 36MP frames and just the preview alone never happened so I aborted after 11 minutes.
Anyone else having longer HDR times in the latest Lr update?
Using Windows 10
Dual Xeon 2.33Ghz32GB RamGeForce GTX 660 Ti
Please uninstall the Lightroom completely from your machine, restart the computer and reinstall it.
Let us know if that helps performing the HDR merge.
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