Players can't see token bubbles on NPCs

I have set the token bubbles all to "see" and "edit" checked for all players and none of my players can see the bubbles. If I put in HP, a bar appers with the min/max HP. But I don't want to show HP, I want to show AC. So I just typed a number into the bubble... nothing. The only way they can see the bubbles is if I put the NPC in the character's journal, which makes no sense because I don't want the characters to be able to see all of their stats. I just want them to be able to see whatever I put in those bubbles... How do I do that without giving everyone access to the NPC sheet? Current player view: DM settings/view

OK a friend of mine just answered this for me and I feel REALLY stupid, but just for the other REALLY stupid people :)... Although you can put "monsterarmor" as an attribute for it to reference, it won't show up for the players if only ONE value is in the settings. You have to have a min and a max. Not sure why, since most of the offered attributes are single-value variables (int, dex, AC, etc.). Anyway, in case you can't figure it out, now you have the answer :).

Putting a "0" (without quotes) in the Max box will give you a single number in the bar. 

Oh thank you SO much!!!

In my 13th Age games I put the AC, PD, & MD in the Tooltip so my players can see it if they mouse over the token. This speeds our play up nicely. I’d never kept those secret from my players, this just saves me time.