I've run into an issue with MSFS 2020, presumably since the last update.
Every time I start the sim I'm presented with the initialisation parameter screens.
After completing them I can enter a flight.
But after exiting and restarting, I am presented with the initialisation again.

I uninstalled then reinstalled the sim via the Xbox app, but that made no difference.  

As part of the flow, I am given the option to load "Essential Packages".  If I try to load them I am returned to the initialisation screen, eventually being presented with a blank update screen, at which point the process locks.
 

Edited March 25Mar 25 by Phil24405

Hi All.  A quick update as to how I resolved this problem.  Not a cheap option I'm afraid.
After multiple re-installations I came to the conclusion that I was trapped between MSFS upgrades and the lack of available updates for my older graphics card (NVDIA 1060)
So I installed a new NVIDIA RTX  5060.
Re-installed MSFS again (oh, the joys of a 141Gb download!) and everything worked fine, first time.
I now have all of my sliders set to Ultra, even with my underpowered i5 cpu.