Most things are working well for me except a few small things:
Bots from botholes that generate don't have a gun, but I'm not sure if that's intentional or not. Actually if it were possible, maybe an option to choose which weapons they could have would be neat. Maybe the same for vehicle spawners with vehicles.
Bots don't ever spawn when I reset a minigame, and /resetbots doesn't work.
If I set the chunk size to 64 with clouds on, single cloud cubes keep generating upwards. (I haven't tried any other chunk size besides the default)
Uncommon details are too common, and rare details are too rare, I don't think they spawn at all.
Unless I missed it, it should be possible to remove a detail in the menu.
Oh and is loading builds into terrain working yet? Because if so how do you?