Sometimes, when I launch a mission with the Su-27, I start up dark and cold on the airfield, and the Jet shows severals issues.
1.
Cockpit stays dark as if electric power was down, but isn't. The monitor stays dark, lighting fails but spooling up engines works.
2.
Pilot hand on throttle stays back on the position of the right engine, regardless the power setting of the left engine (only throttle moves without hand)
3. External model shows taxi and landing lights on the jets nose, althoug the gear is retracted.