It's not a bug but I got a question.
Please look at the screen.
It's in the open world. You can see all names of friendly players, colored by the class.
I'd like to have the same view inside a dungeon - names of my teammates colored by a class but I don't want to see their healthbar.
Is it possible to adjust the addon like this? I feel like I tried every option but maybe I missed something?

Blizzard doesnt let addons style friendly player nameplates in dungeons and raids, you should be able to just turn on the default blizz nameplates for players though, is that not working either?

Blizzard's nameplates work. The thing is... I cannot read them. I mean during the raid-fight with this Blizzard font highlight, I often don't even know that someone is standing near me. And when I press ctrl+v to better see them - 1.000 of healthbars appear and I see nothing else. :D
With TidyPlates (in open world - as per my screenshot), everything is so clear. I see every person by a name and I still see the rest of my screen without 1.000 health bars.

I had a feeling that for some reason it's impossible to adjust it the way I want. Anyway, thanks for your response. At least I'll stop trying now. :)