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Locked files during batch processing

Aug 6, 2019
Lightroom Version
Operating System
Windows 10
Lightroom (latest version) every once in a while claims read only access during batch processing of HDR pictures .

What I do is Photo > Photo Merge > HDR based on stacks (Stacking > Auto-Stack by Capture Time… > Time Between Stacks 0:00:01).

This only happens some times and can be solved by clicking ok. As I want to run this unattended I would love to see a solution.

SNAG- 14.10.2019 19.44.41.jpg

Looking at the files in question in explorer these are r/w. (Machine is based on AMD 3700x with 64 GB memory. Files reside on NVME gen 4 drives.)

Any input is really appreciated.

May 12, 2011
Lightroom Experience
Lightroom Version
You could try turning off "Automatically Write Changes to XMP" in your catalogue settings:
2019-10-18 06_39_25-Window.png