What's the error listed for it? We need that bit of extra information before we can help you.
If it's suddenly been flagged as Faulty without you touching it, it may simply be a false positive. Right-click on it and select View Errors and Warnings, and see if it gives you an error or simply clears the asset of its error.
The second issue is simple - check your commodities in Content Manager, as one of them (or more) is faulty or missing dependencies, or is a 'hidden faulty' asset.
In terms of the first one, does that happen on all routes or just one or two?
The track issue is a display issue and it happens in TS12 both prior and after SP1. The image will draw its self in if you zoom out and in or move the camera.