LOOKUP(USEREMAIL() Table does not allow this operation

[Atlas]

Hi, I am struggling with privileges and security filters…
I want to give edit privileges to specific users and limit them to view related projects by using staff table,
but getting this error “Table does not allow this operation”.

STAFF TABLE

with the formulas

for privileges
LOOKUP(USEREMAIL(),"STAFF","EMAIL","PRIVILEGE")

for security filters
IN(LOOKUP(USEREMAIL(),"STAFF","EMAIL","PROJECTS"),[PROJECT])

I want
Morpheus to view all projects but READ_ONLY
Mr Anderson to view all projects and make ALL_CHANGES in all projects
TANK to view worlds and make UPDATES_ONLY
Trinity to view projects that she is related but READ_ONLY

Thank you all…

@LeventK @Steve