As you insert a cross-reference to an item, Word encloses the item in
a hidden bookmark. If something is added to such a bookmark, the
cross-references to the item won't behave. Although deleting excess
paragraph marks may be an improvement, it won't solve the problem. The
reason is that anything inserted at the beginning of a bookmarked
paragraph will be included in the bookmark. You can easily see this by
experimenting with manual bookmarks (inserted via Insert>Bookmark), if
you enable their display on the View tab of Tools>Options.
Recreating cross-references won't delete the old bookmarks, either.
Instead, you get extra, unused bookmarks in your document. The proper,
but somewhat time-consuming, way to fix cross-references is to
"redefine" each bookmark so that it encloses the correct piece of
text.
For instructions on how to modify existing hidden bookmarks, see
the article at:
http://sbarnhill.mvps.org/WordFAQs/CombineXrefs.htm.
(Note that the article focuses on restricting hidden bookmarks to
single caption numbers. Of course, you should redefine the bookmark so
that it points to the correct *paragraph* of text.)
And in the future, avoid adding things at the beginning of a
bookmarked paragraph. Instead, press ENTER at the end of the previous
paragraph.