Bug Cannot open 2020.1.4f1

Hi I'm using the latest update of Unity 2020.1.4f1 using version control to share project via gitlab as host for the project and github desktop as the local client.
After creating the project and cloning to local HD and then creating a project in Unity for the HDRP render pipeline, I have not been able to open the project and get stuck with a blanked out updater for Unity and failed to load window layout pop up, none of the buttons worked other than quit.

I had to reinstall unity hub and unity 2020.1.4f1 create a blank project on another drive which worked. then recreated the project and somehow I was able to open the project. I have now gone through the same process with another team member and he is having the same issue with not being able to load the default layout or revert to factory settings?

If anybody is having the same issue or have a fix and could give me some advice it would be greatly appreciated as I'm clutching at straws???