I've updated the addon today to the newest patch, which released today but now the tooltip infos are not showing.
Infos such as quest progress and which mobs contribute to ongoing quests are not showing even though these options are enabled in the settings. This was still working yesterday. Switching to the previous version fixes this issue.

You on Retail, Cata, Classic, SoM?

SoD, forgot to mention that

Same behavior on Cata, tooltips just no longer work loads of the time.
Like bosses not showing what loot drops are still required, or tier tokens showing what they're still supposed to be used for.

I tested Cata a bit yesterday and latest Git was working as expected. I had enabled all Information Types and the proper ones would show from a fresh login. If you continue to experience this after today's ATT release 3.12.8 please show a screenshot of the tooltip not working to help narrow down what might be causing this.

It's definitely still happening, but I wish I had more info to give as to cause.

On initial login it didn't work. I disabled tooltip integration checkbox, did a /rl, turned it back on, and it worked.
And so far so good, will update if it switches back off again.

I logged back on after a bit and they're gone again. No errors on startup whatsoever. They were there when I logged in.

I'd expect the token to show progress x/3 and where it drops from
(The added loot drop info is from a different addon but they normally peacefully show together)

It's definitely still happening, but I wish I had more info to give as to cause.

On initial login it didn't work. I disabled tooltip integration checkbox, did a /rl, turned it back on, and it worked. And so far so good, will update if it switches back off again.

I have the very same issue. It has been a problem since v3.12.7. I just don't want to keep reloading on every char so I'm back to 3.12.6 for now.