I have books with apparently the same comment formatting, but which are displayed differently in the book details panel: some have spaces between paragraphs, some don't. I can't find a reason for this. A couple of examples:
No spacing:
Spacing:
(left: book details panel; right: edit metadata dialog, HTML source tab.)
I don't see anything relevant in the HTML, do you? This is just after starting up calibre, no edits have been done.
There's the global styling mentioned here (
https://www.mobileread.com/forums/sh...d.php?t=325867). But is there also some per-book styling? Or what is going on?