Unity Hub version 2.1.3, Unity version 2019.2.12f1 on Window 10.0.17763
Unity is download and installed by unity hub. I can create and open local projects without problem. The problem I have is other than the first learning project, I can’t download any other learning projects.
Managed to fix this. The first project which I have downloaded earlier requires 2018.4 to be installed which I didn’t of course. Install it will fix everything. It really needs to handle this in a better way.