BuddyPress.org

UPDATE:

On a suggestion from Sarah Gooding, I logged into the forum as the admin and double-checked that the group I was trying to post to had the “Enable discussion forum” checkbox checked. It did so I decided to uncheck it and save my settings which were confirmed. I then checked the “Enable discussion forum” box again and saved my settings and viola! It worked just as it should. Very strange but it worked. I can also post to other groups now that I did not create as well. I hope that this helps out.