Hello, i set my server to SE expansion and still droping gargoyle loot on mobiles... how can i disable those items?

Thanks in advance.
I am currently working on this myself - the problem is there is no expansion check on the gear that is dropped if I remember when I looked at it the other day - due to not having an expansion check you will need to go in and manually remove, or change the code that has anything to do with dropping things you do not want in your selected era.