CWDT Forbidden Rite Occulist issue

Hello, I tried to replicate the budget version of this build: https://www.youtube.com/watch?v=DAh0A1qwpb0&ab_channel=DDJW

but the CWDT summon skeletons keep breaking after 1 or two loops and I don't understand why... can anyone help me figure this out? here is my POB:

https://pastebin.com/NFYrKkwg

thanks a lot