There is some folk wisdom running around that says it's good sometimes to delete a folder from your computer named "Team Projects Local Hub." You should never delete this folder unless specifically, personally, instructed to do so by Adobe Support. And even if Adobe Support tells you to delete it, you should probably only rename it – you should probably not permanently delete it. You should certainly never do anything with this folder while Premiere Pro, After Effects, Prelude, or Media Encoder is running. Data in this folder contains the Team Projects auto-save information for your local computer, and it is used to store and retrieve auto-saved versions of your Team Project using the auto-save history feature of the Media Browser. Deleting this data will not usually solve Team Projects synchronization problems.