please can you use this Y wing free 3d object texture and create a new Ywing please, https://skfb.ly/osrES i would do it my self, but the problem i have is not sure how to i add to to msfs i try and just remove the files and textures you have, hope you could do this its a 2 min job, same for X wing they is free HD textures and they look epic, hopy you can add this.
JonX has great tutorial videos on this - https://www.youtube.com/playlist?list=PLyYr3KUdmxeDyLrgAsObk92jV3XoOsqNy