When I started my MSFS2020 the program automatically updated and did a full program replacement. When the flight simulator started I saw only two airplanes to select: The Cessna 152 and the TBM 930. I stopped the program and then did a new program upload into a different folder. I use a dedicated SSD for the simulator. After the long upload the slight simulator started up and again there were only the two airplanes for selection. How do I acquire the other aircraft?
This is a known problem.
Take a look here to resolve it.
KNOWN ISSUES (Last modified: Nov. 17, 2020) – Microsoft Flight Simulator Support (zendesk.com)
Thanks for the tip. Will try tomorrow.