[leftright]

I veiwed a different book in Glo for Comments and the comments were evident in that book without any additional update metadata commands from Calibre.

(back to problem book).....
After finding the correct Update Metadata dialog, (red face here), I ticked the "comments" field, and updated the metadata on the problem book.
Ejected Glo; Nothing under synopsis/details for this book.

The comments for that book is large(utf8). Does the Glo have a size limit for synopsis/comments/details?.

I've attached some pics of correct update dialog, (I confused it with the update cached metadata, my mistake).

Also attached; Debug; and the Comments for the book (utf8).

Many thanks for your time and patience.