Hi,
I'm not sure if this is a bug with my account or the platform, any help would be appreciated so I can set a proper Display Name for myself.
When viewing my profile at https://forums.oracle.com/ords/apexds/user/user-qua2r I have an Edit Profile button.
Clicking Edit Profile opens a drawer which shows my display name as user-qua2r and has an Edit Display Name button.
Clicking Edit Display Name opens a new tab which directs me to https://profile.oracle.com/myprofile/account/secure/update-account.jspx
This gives a page which shows my email address as my username, and has an Edit button, but does not mention user-qua2r anywhere:

Clicking the Edit button only allows me to edit the email address of my account, if i try to enter a username it advises it has to be an email address format:

This forum post refers to someone being able to change their Display Name and it hasn't updated on the forums, however I don't appear to be able to change my Display Name at all: https://forums.oracle.com/ords/apexds/post/display-name-not-showing-on-my-activities-7128