When translating the PersonaBar Roles page in a Multilanguage platform (or just any other language then English), the Title is not included.
So all files are translated but the title is not affected.
See issue on forum here: https://dnncommunity.org/forums/aft/509#1956
List the steps to reproduce the behavior:
The current result is that no matter what translation file you translate, the Roles title will not be affected by it.
That it will change the Title according to the translated files.

DNN 9.3.2
I have not tested the lower DNN 9 versions.
Every browser as the issue is not related to the browser you use.
I tested this and to me this seems like a bug.
For the Users part of the PB the localization is here:
DesktopModules\Admin\Dnn.PersonaBar\Modules\Dnn.Users\App_LocalResources\Users.resx
If I change the text to:
< data name="nav_Users.Text" xml:space="preserve">
< value>Users-x< /value>
< /data>
The PB shows Users-X (after an app pool restart)in the "PB menu" and the header of the "Page" itself.
When I do the same for Roles:
< data name="nav_Roles.Text" xml:space="preserve">
< value>Roles-x< /value>
< /data>
In DesktopModules\Admin\Dnn.PersonaBar\Modules\Dnn.Roles\App_LocalResources\Roles.resx
Only the text in the PB menu changes and not the header in the actual edit screen.
So IMO this is a bug.
You can check if "static text is localizable by the setting in web.config
<add key="ShowMissingKeys" value="true" />
I am not sure if this setting works for the PB _(ooohhh, how I do not like the PB_ :-( )
(you are not allowed to say you don't like the PB :p) ;-)
@Timo-Breumelhof I am not saying it, I am writing it :-)
@EPTamminga even worse.. ;-)
I have not tested the lower DNN 9 versions
Well, what's important is to test the higher versions :)
Also, you you spoke french then it would simply be the same word in english and french and you would have no problem :P
But all kidding aside, yeah, there is a bug, the code here looks for Roles instead of nav_Roles.Text and the resource file does not have a Roles key, so it just displays the key.