I am trying to set up the Outlook App and I modified the "App for Outlook Contact Quick View" Contact Form to remove the previous activities section.  It removed that section fine, but now the icon for Track regarding is gone for the Opportunities.

This talks about modifying the Contact Card, so I'm not seeing that you aren't supposed to touch these App for Outlook forms:  https://docs.microsoft.com/en-us/dynamics365/outlook-app/customize-the-track-regarding-card

I've tried to restore the form from another environment with no luck so far.  I am seeing that for that Form, the formxml when I export is missing the controls for Track regarding, vs the formxml from the "good" environment still has those controlls