This is just and FYI to help others that may have been trying to figure out the same issue as I.
I could never get Windows' File Explorer to displays file properties (e.g., width, height, framerate, etc.) for MKV files generated by HandBrake. Files from others sources would, but not HB.
I found that if I delete all tags from the file using mkvpropedit (via --tags all:), the column info would properly display. mkvmerge will also do it, but not as reliably (not sure why). So, I just created a Bash script to run all the files in a folder tree and script all the tags.
Thanks,
DrX