[cdengler]

I just spent some time with Avid tracking a similar issue down. It came down to something pretty simple: LOG OUT of Pro Tools, then LOG BACK IN. You don't even have to close out Pro Tools. Rebooting the machine has NO impact. You must log out then back in. After I did that, everything pushed up to collaboration! I have spent almost 2 weeks trying to troubleshoot this.

I hope this helps someone.