Office 365 ProPlus -- Clear All option not displaying in Style master list

[jthomas666]

OK, so I'm working to rebrand some existing docs with an updated template. When doing this, I often run across paragraphs with lots of weird formatting--I like to use the Clear All option, then apply updated formatting on a clean slate.

But for some reason, these docs don't have the Clear all option. (see attachments for screenshots).



The Clear all option is present in new documents, as well as others. So the problem is restricted to these docs. I just need to know how to restore the option w/o completely redoing these docs.

thanks