Group rules error - user doesn't match

I am trying to create a group rule using the below condition in the expression language where I am checking if the employee type is ‘9’, even though the employee type is 9 when I check if the user matches the rule using preview Okta says user doesn’t match the rule. the employee type is a string array, is there something wrong with the syntax?

user.en_employeetype == “9”

Looks like there might be a type mismatch here. Can you try this expression: Arrays.contains(user.en_employeetype, "9")