Today I upgraded from DOpus 13.4 to 13.5 and was surprised to find all of my descriptions had disappeared.
My descript.ion files were still intact - DOpus just won't display them anymore.
I checked my settings but everything was still correctly configured.
The Set Description dialog won't display them either.
If I apply a new description to a file, the lister shows it initially, but disappears when I refresh it.
However, it is not happening in all of my folders - only those on HDDs mounted in folders. Many years ago I followed this guide to use NTFS volume mount points to reduce the number of drive letters used. I'm hoping @Jon can reproduce this issue and fix it in the next beta 
