^I rechecked everything. I also looked at the turntable in the TSRE; it appears there and looks "normal." However, it still fails to show in the sim. I'm attaching the log file again. It clearly shows the error--I quote it here:
Warning: System.IO.FileLoadException: {TileX:-12844 TileZ:14279 X:976.166 Y:4.96104 Z:-949.197} scenery object 815 failed to load ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Orts.Viewer3D.TurntableShape..ctor(Viewer viewer, String path, WorldPosition initialPosition, ShapeFlags flags, Turntable turntable, Double startingY) in F:\ADRIANA\Carlo\OR_Work\Git_ORTS_source_mio\Source\RunActivity\Viewer3D\Shapes.cs:line 1557
Object 815 is the turntable.
I'm using NY MG R153. That said, I've tried several earlier versions and the turntable does not show up there, either. To be clear, the revised turntable .s file is installed in the Global folder. The .dat file and SR_FBLine4.trk file from the revised turntable download are installed in the openrails subfolder of the route, per the instructions. All of the 4.02 route updates have been installed. I'm at a loss of what to try next.