Opening .dm4 files from a 3View, I usually get this error. This has been a problem for a few years and I’ve updated my Bioformats recently AFAIK.
Cheers,
Matt
Verifying Gatan format
Reading tags
Populating metadata
[WARN] Unknown Correction value ‘Unknown’ will be stored as “Other”
[WARN] Unknown Immersion value ‘Unknown’ will be stored as “Other”