OK, I finally got my mega Brain up to WebBrain last night.
My challenge now is I'm getting a "Sync Failed: Error retrieving Remote Sync File" when I try to retrieve that mega Brain on my Mac.
I even tried a few small Brains and there error also happened
Mac Output log
TheBrain 18.104.22.168, iOS V10.0.
Windows 10 (V19041), Windows 7 SP1, OS X V10.15.x
Using The Brain since V3 (1999)