Currently im using incontrol to try and prevent all passive spawns in dimension 6 which is an Aroma mining dimension, that works fine.

I'm also trying to stop rabbits from spawning anywhere in any dimension, this is not working

Lastly i'm trying to stop all hostile spawns in dimension 3 which is an advanced rocketry dimension, this is not working.

Here is my spawn.json file:
https://hastebin.com/ejosiwawor.json

I thought maybe it wasnt working for the advanced rocketry dimeions because of some mod interaction but when I noticed the rabbits were still spawning everywhere as well it seemed more an issue. Is there anythign wrong with this spawn.json or something else that may be causing this?

MC 1.10.2
incontrol-3.5.5

You cannot use "remove" there to stop rabbits from spawning. Use something like

{
"mob": "rabbit",
"result": "deny"
},

Note that you can do /ctrldebug command to turn on debugging mode