Quick check after 34.21 update: It didn’t fix the problem in my case (not that I would have seen any claim that it would fix this issue). FN still crashes when I start my large project’s Edit Session from UEFN.
(Good find by Raikiri125, but unfortunately didn’t help in my case. I took an old pre-34.20 snapshot, didn’t add any custom Verse devices, but FN still crashes if I make the smallest change I can think of by slightly moving an existing prop)