There is this error message even when I didn't use those and used the ( character with the correct length - "Password must be at least 6 characters and contain one upper and one lower case letter, one number and one special character. The password should not contain special characters \ , / & : ."
so it appears that the ")" character is also not allowed.
Our next update will show valid special characters. This is what is valid:
Valid Special Characters !#$%&*-?@^
How can I edit the list of not to use to include the ")"