Question Hub/Dashboard are not in sync. Please help explain this!

Can someone please explain the difference between the project list in the Dashboard and in the Hub? It is pretty maddening that the Hub "Open Remote Project" still shows a project that I am trying to remove while the Dashboard does not show it as existing. Maybe it's because I created a Plastic SCM repository for it?

Where do the Hub and the Dashboard get their list of projects from that causes them to be different?! Arg!

In general, it is surprising and dismaying that a product as mature as Unity is such a mess in handling removing/renaming projects.

 

Did you ever get a response to this because I'm having a similar issue, the only project that is showing for me is one I archived almost a year ago, my project I want to work on is just from last week and is showing fine on the dashboard but not in the Unity HUB drop down for remote projects