Welcome, @anon10753237 and @anon91475255,
You can sort the Team’s project still, but now you must do so in the Team page. In the sidebar, click the Team name to view the Team page. Drag and drop the projects to reorder them. The results will both be reflected there and back in the sidebar when you hover the team and see the popup list of projects.
In addition, you can Star projects to appear in the sidebar’s Projects list and you can drag and drop to sort that list directly in the sidebar itself. Star a project from the Team page with the project’s “. . .” menu, or at the top of the project while viewing it.
More info:
Larry