Clicking on Upfront in top menu doesn't load Upfront on home page


For a while now, the “Upfront” button has been grayed out when I am in “?editmode=true” mode.

And in the WP admin dashboard mode, when I click on the Upfront button at the top, it doesn’t load Upfront.

The only way to load Upfront is to navigate away from my home page, to another page on my site and then the Upfront button is not grayed out anymore, I click it and Upfront loads.

This is weird.

Can someone please have a look? I turned on Support Access.

Also, clicking on Customize when I am in themes used to load Upfront and now it doesn’t anymore.