If you are using P3Dv3 or P3Dv3.1 please take care that the „SimObjects Manager“ of SIMstarter will modify the structure of your SimObjects.cfg file located here
C:\ProgramData\Lockheed Martin\Prepar3D v3
I do not recommand using SimObjects Manager with P3Dv3 at the moment. All other platforms are not affected.
PREPAR3D v3 uses an extended configuration file format which is described in the SDK. SIMstarter will remove the optional configuration lines if you are using SimObjects managed by SIMstarter. If you have any issues with that please do not hesitate to contact me. As far as I can say this does not affect the operation of PREPAR3D but it is a bug that will be removed with next generations of SIMstarter.
To restore the original SimObjects.cfg you can rename the file to „.off“ and restart PREPAR3D again. It will be recreated automaticly.