If you are level 10 Ascension, check your XP. If it says xx/139,200,000 and that first number isn't 97,200,000 or higher, you need to talk to your ascension trainer ASAP. There is a bug where ascXP starts counting from zero instead of the prior 97.2m from level 10. Talking to your trainer resets it, but it resets it to exactly 97.2m...any ascXP you'd already earned is lost (as the sad ogre who just lost 9.5m ascXP knows). Until they fix the bug, you'll want to talk to your trainer right away so you can keep as much of your XP as possible.
The trainer won't say anything different, but if you had less than 97.2m ascXP showing in your progress before talking to them, saying hello will have reset it to 97.2m. Now that you have talked to them, you should be good regardless...you can confirm by checking your ascXP and making sure it is giving you credit for the 97.2m you gained from levels 1 through 10.
Did you use the "bump to 11" bauble already? On a class that is still level 10, you should see "Current Progress: xx / 139,200,000 (xx.x%)" and below that the Guided Ascension XP remaining: If you used the bauble, then you are indeed maxed out on that until the expac hits and you can talk to the newly-educated trainer to start leveling again.
That's why you are showing maxed out. And now you should be good for the other three classes, since you'll have to talk to the trainer to switch...it's just that first class that might have been bugged.
Yup, you get one granted to you when you max out level 11 in an ascension class. You just won't be able to talk to your trainer to keep going beyond that until the new expansion hits.