Unable to Create Post, Post Activity is Blank

I see that you've run Autotune against version 8.3.0. I just put out a new release 8.3.1 a few days ago that resolved some issues for Channels that might be related to what you're seeing. Have you updated to 8.3.1 yet?

If you already have, please provide a URL so that I can see the open graph tags for one of the pages you're having problems with, to make sure the description, etc tags are set properly.

-Melissa