I'm not sure how long ago this changed, but it was pretty recent….
I used to be able to make a legend from my tool counts per page by selecting the counts to be per the "current" page and then at the begining of the document on the cover page I could create a Master Legend with the Total Counts that had ALL the counts from the document associated with that tool list.
Did I accidentally change a setting or did bluebeam change something that makes it so whenever I make the Master Legend that captures the counts from all the pages in the document now supersede the individual "current page" legend counts, which causes them to go blank?