I just want to follow up on this, as it looks like you did a trial of the new version of Photo Mechanic quite some time ago, and the workarounds to this issue have changed since then, so while we cannot specifically grab the HEVC preview embedded in these files and show that to you, the experience is much improved over using Adobe DNG Converter to either deliver JPEG previews or create DNG copies of these images. If you are interested in testing out these changes, please email support@camerabits.com so we can set you up with a trial license.