I manage to make it work after uninstall and reinstall directly using v1.05 executable file. I believe that unzip from v1.0.0 and perform "update" with v1.0.5 is causing the problem. And regarding the auto-start problem, it seems that I need to manually select "Run as Administrator" every single time under Windows 11 start menu to make it work. Modifying the FlightSimulator.exe file properties and check "Run as Administrator" and lauch MSFS doesn't seem to work.