I've not seen any of these load problems picked up in the Known Issues posts as yet, so I'm tagging it here in the hope it'll get some visibility.
@gopher.ny - you appear to be the official in the thread here! 
Do you know if any of this is being investigated? I offered to provide any required info above, but heard nothing and the lockups were causing "domestic issues", so I had to revert to the previous version.
My hubs are all back to loads around 0.1 - 0.3 or below now I've reverted to 2.3.3.140. I do use Hub Mesh and run with the Z-Wave radio disabled.
