Upfront editing panel completely missing?

Logged into one of my multisites that uses Upfront/Spirit. When I click on Upfront in the top menu to edit the site, the Upfront edit panel doesn't come up when the page loads. Running Upfront 1.4.3 and Spirit 1.1.2. I reset the upfront cache and the WPEngine cache. URL says: http://-website-/?editmode=true. Did something change or do I need to do something different? Running Firefox 49.0.1 on a Mac.