The last Sim Update 5 applied to Microsoft Flight Simulator requires now a little Hotfix, gone live already, making MSFS to go version 184.108.40.206.
Download the update first via Windows Store, and then launch MSFS for the final install step in order to fix the necessary and following items :
- Fixed various crashes in game and on the world map
- Fixed crashes related to the offline AI traffic
- Fixed minor memory leaks
- The title should no longer freeze for a very long time when connecting / disconnecting peripherals
The complete release notes are listed on this official web page.