[SOLVED] Trying to use activity module as a bulletin board

I've added an activity module to the frontpage of the site.
The idea is that people can post small comments and info there.
The input field appears, but there is no way to 'submit' the content?
Looking in the webconsole I see this message:

Which sounds very relevant, but how do I fix it?

Some reason CB Activity jQuery isn't loaded. Are you using a header compression extension like JCH Optimizer? If so try disabling it and clearing Joomla cache. Did you turn off CBs jQuery in favor of using your own in CB > Integrations? If so try turning CBs back on and clearing Joomla cache.

No, no compression things, and it's getting loaded:

Odd.

Is both CB and CB Activity completely up to date? Please PM a URL to the page where it's not working and will review the page to see if other JS could be conflicting.

I tried looking through the pagesource with my limited knowledge of it, but couldn't see anything sticking out.
I'll pm a URL and a username/pw.

Looks like same issue as the below bug.

forge.joomlapolis.com/issues/7019

Basically something keeps taking over the jQuery global variable. The only workaround is to turn off CBs jQuery loading in CB > Configuration > Integrations, which I have already done for you so it will use the jQuery loaded by Joomla. Since your template seams to always be loading jQuery this should work fine and reliably.