Same problem here with PA31 installers into Prepare ver3. There is no FSX on my new PC only Prepare 3.
Tried the installation metoed with a complete empty FSX map. Installed the PA 34 ( 31 ) into here but there is no panel map, all others
gauges sound texture maps ok.
There is no help from Carenado, only the answer : Those your installation folder manual.
That don't work. Installers then need bla bla \ FSX\ dll. file.
I do not have FSX. Really need a new installer from Carenado, that work.
I have try install so many times that I now don't have more downloads on the PA31 and PA34.
Hope Carenado can help with that !
regards