Evidence:
After pressing play this message pops up.
Steps to replicate:
Open any project in UEFN and press the play button. I’ve tried 3 different projects all with the same results. Two of these projects I was working on with no problems 12 hours ago.
This seems to be happening at specific times and gets fixed afterward (at least for me - server outage or something). If you try now do you get the same error?