On TDW, where I mostly operate, I created this timeline of events regarding the Vatican Blackout. Many of the details seem to be as much of a mystery to TDW as it does here, but I hope it can aid you in your research.
https://thedonald.win/p/11RhcvunCq/timeline-of-events-regarding-the/c/
We really don't know. All we know is that he appeared on a different camera that was discontiguous with the live feed.
We are wishing for things to happen, that we must acknowledge. And like how we the public haven't seen Trump in days, the public has not actually seen Francis physically since the "blackout" and gunfire sounds.