Interestingly I am even missing those Bf109 textures that Xoho shows in his beautiful screenshots... A Repair didn't help.
Looking very much forward to continue the campaign once that issue is solved.
Have you tried putting some delay between the key strokes?
I have no experience with InputSimulatorPros, but this has always been necessary with similar libs. I would start with 50 ms and than start making it smaller...