Data Access Set for user not changing

Summary:

In testing Data Access sets I have assigned a user a single Role 'General Accountant' (Starting ORA_..).

I revoked the old data access set from the user and assigned a new data access set. But when logging in the old one still appears and there is no option to change it.

I have run the Import User and Role security process

Content (required):

Old Data Access Set 'RS Test Bal Seg Data Access' is revoked and not assigned to the user (This did work in the past)

New Data Access Set 'RS New Co Data Access Set' is now assigned to the user but user does not see it when logged into GL