I’m working on two bugs at the moment.
One is a case study not appearing, despite the tags and bookmarks appearing correct.
I’m going to remove them and reinsert them with fresh tags to see if that addresses the issue.
The first thing I would check is that the bookmark of a tag or another case study is wrapped around this case study as well.
One by one, Click in the preceding case study – select Insert > Bookmark > Go To – Close, check the range selected
Repeat for each tag and case study before and after your dodgy case study, and the after the preceding case study and before the following case study.
If all OK – let me know which case study and I’ll take a look.