Lost Auto-numbering and Topic Properties Hangs in RH 2019 (Update 11)

I just upgraded my RoboHelp Classic 2019 project to RH 2019, update 11. The upgrade went fine, but all of my topics lost their auto-numbered steps: 

When I click the Topic tab under Properties, RH hangs for several minutes before displaying the Topic Properties:

Once I'm able to double check that the correct CSS is applied (and it is), checking the autonumbering for the paragraph doesn't seem to reveal why all steps are listed as Step 1: 

Is there a fix for the slow response time for Topic Properties and my autonumbering? Thank you.