External notification

Hmmm, the latest update is not logging any Activity so there's notification happening. The group Activity post is there but it's not logged as an Activity event or as a Notification.

It's not logging any activity for doing what exactly? Notifications don't send on activity logging. They send on notification logging. Specifically those configured under CB Activity > Parameters > Notifications. Which of those isn't working for you?

If you were using the old CB Activity > Parameters > Notifications > Activity > Create (Groups) notification though it's now gone in 7.0.0. It is instead entirely integrated into CB GroupJive and will respect whatever configuration you've set within CB GroupJive. The same applies to CB Activity > Parameters > Notifications > CB Gallery > Create (Groups). They're both subscribed to via the GJ notifications page and will send as a GJ notification.

So I'm not using the GJ Wall, I'm using GJ Activity instead, so I have people posting to specific Groups via GJ Activity, then there's an Activity page in the various groups and general Activity wall that includes articles, GJ events, GJ Gallery, etc, for all groups a user is part of.
That's all posting fine. But before this update it also used to post to the internal notifications (CB Activity > Activity) and that would trigger a Notification (the little blue mail icon and globe icon on the user's profile page).
And it would trigger the Auto Action I had setup to send a mail. 
Since the latest update that trigger doesn't happen (CB Activity > Activity), so no mails are sent and no internal notification is logged.