Solved Players Cannot Build on Survival World?

Ello! Hopefully you guys can help me out.
I run a multi-world server, and recently had to reformat the permissions for it. Ive just noticed today that my non-opped players can't build on our survival world, which is a big issue!

I have the following plugins:
Multiverse-Core
PermissionsEx
WorldEdit
WorldGuard
Multiverse-Portals
PerWorldInventory
Vault
Magic
MobSpawnSettings
Essentials
CoreProtect

I just want them to be able to build on the survival world, so I've tried adding:
modifyworld.*
essentials.build
essentials.build.*
For the survival world to the default group, which every group inherits from.
Still, nothing has worked.
Does anyone have any suggestions?

 

@SweetHABIT
For PEX, Are you sure the groups can build, and are you sure you set that world so they can build?

 

Ya, I doubled checked all of those things and then went through essentials after searching through several threads.
Without even knowing it my server updated to include Essentials AntiBuild. Im not sure if I had it from the start and the permissions were just set up differetly before redoing them, but I deactivated it and everything seems to be working now!
Thanks for trying to help!