EL expression under VBS page properties is not working for multiple roles

Summary:

Hi Team,

We have a requirement of hiding 'Add' button for certain roles. We found an oracle released document about how we can write an EL expression to hide it role specific. The following is the link for the document:

We are writing the EL expression for one role and it is working fine. But when we add multiple roles the EL expression is not giving the expected behavior as it should, mentioned in the document above.

It is applying the rule only on the first role in the list of roles added to the EL expression.

Scenario:

Lets say my user has the role - 'SKG_REC_EMPLOYEE_ASSOCIATE_JR'