I’ve just bought Conan Exiles for my XB1, and have been playing for a couple days now. I’m really enjoying the game, but I too am experiencing this “no stun bar” bug when trying to subdue NPCs.
I play offline SP only, can’t do online (my connection speed isn’t good). I’ve tried tweaking the admin settings a little but haven’t found anything that’s fixed this problem yet. Does Funcom even know about it? From all my searching, I’ve only seen this bug mentioned a couple other places. It seems like a rare problem that doesn’t affect many people.
Edit: I just went back in game to try some things and I fixed it. I went into the server settings, and under General, I chose a difficulty preset then altered the rest of the settings to my liking. Then I quit the game and restarted it. The stun bar is there now, and i even got my first thrall. 