[this got rather long, so I bolded the relevant parts for quick scanning]
I have about five content types and all have a the main comment stored in the comment_body field.
All behave as expected except for one content type where the comment body does not show. The title, excerpted from the body shows, but the data does not. If I add a new field, nothing at all from that field shows, regardless of whether it comes first or second in the Comment Fields listing.
I've tried this in Bartik, Stark and Seven and the theme makes no difference.
When I look at the devel /render output, it shows that in other content types there's an array element for (where 2070 is the comment number):
$array['comments']['comments']['2070']['comment_body'] and that element contains 16 elements.
In the content type that has problems, this is entirely missing. So somehow it is not getting rendered at all.
When I look in the DB, the data is there. When I edit the comment, the data is there. But when I preview or look at the comment on the page, all I get is the title.
I've tried everything I can think of... but I just can't figure this out.
- compared all the settings to those of content types where it works.