Hi, thanks for your help. I'm using 5.0-18171-dirty. I dont' know if this is the 15_03_2023 build, but all the links are broken, I'm afraid Big N strikes back. With my version it need patches. Without the patches I have the motor message. I use the C, D and E versions from "archive" source.
For Rocketlauncher, I just modified the module to copy the .ini file and the backup.bin before launching the games. All is perfect and I can choose between the different revisions.