Engine stops at the start of some missions

In msfs-2024, when I start a mission and get into the plane, the engine stops. I can sometimes re-start it, but it will stop again as if the mix fuel-air was too rich. When i grab the command and change it, it gets back to its original position. So I just can’t taxi and take off.

This happens actually also in the “night fly” certification.

Anyone’s got a tip ? Thank you in advance

Which planes are you referring to?

Have you done the walkaround and removed all the covers on engine and static ports? Most obvious reason.

also attach pictures of the issue and cockpit dials and control levers - it will help others to visualise issues

I suffered this a few months ago and it was an input conflict. I have two throttles - a Winwing F-18 thing and a Virpil GA quadrant panel.

When flying an aircraft with the Wingwing throttle I used a profile for the Virpil one with the axes disabled so I could still use the buttons. This combination had worked fine until I started getting the same issues you describe. Couldn’t figure out why and was forced to ‘solve’ it by simply disconnecting the Virpil one.

What hardware are you using?