We use JCE Pro.
In the feature settings of a profile we activated the option to show the Code tab in order to be able to manipulate input in HTML-Code.
The Code tab does not show up, when a user with the correct profile is logged in.
Any help is welcome.

This is what i see, when i create a new content or edit existing content.
Additionally i posted the setting that the code editor is activated in a profile

By the way, we use Version 2.9.27 of the editor.

The problem is solved (halfway).
Our customer uses the editor with his account and the activation of code editing solved the problem for this account.
There seems to be a missconfiguration for my testaccount, but i cannot see what causes the problem.
The configuration is very complex in a multidomain environment with seblod.
For the moment the problem is solved for our customer.
There is no need for further investigation on your side.
Thanks