guys... it's actually no support if you just "move around" the topic!
That's like the German bureaucracy: "Well we are not responsible for those issues, please go to room 214/11/a5" ... And there they tell you: "Ahmm... well actually, you should probably better go to room B on the second floor" instead of just doing their work!
There's an ACP and a staff member who just looked at this bug report and the best you can do is move it around? - What are we paying Adobe for? - Definitely not for senseless moving stuff around!
Actually, those folks moving the post to the Premiere forum got it in front of my eyes, and I've had quite a bit of Team Projects experience so I'll do my best to help you out.
As you know, while the Team Project is being synced via the cloud, the database actually lives on your computer. I think you have two options here.
1) You can restore a previous version of the sequence from the Media Browser
2) You can delete what's called the Team Projects Local Hub
Option one is probably your best bet to try first:
Open the Media Browser and click on your Team Project. You should see two options, "Versions" and "Auto-Save." "Versions are what have been pushed to the cloud, and "Auto-Save" is the local copy that's being update with basically every single click you make (the benefit of a database over using a .prproj file).
Rather than try to write a bunch of steps where I might make a mistake, check out this Help article for details on viewing previous versions and browsing the Auto-Save: Learn how to share changes, receive changes, resolve editing conflicts when working on Team Projects.
Option two will allow you to delete the local cache of your Team Project so you can pull it down from the cloud again. This would work to get your collaborator's changes if you never pushed your own back to the cloud. It's the same as if you created a new user account on your machine or logged into the Team Project for the first time from a new machine.
Let me know if this helps!