Hi folks, I've searched everywhere for ages now trying to resolve these issues, I'm now hoping that someone here might be able to help and shed some light on this for me? So thanks to anyone in advance! I tested the track in a primitive state and was able to join the track in all session modes. I then done some more work to it and now the 'Race' button is disabled preventing any player from joining the grid. Does anyone know what might be causing this? I've tried 'Clear All' and re-'Append Track' but made no difference Also, another problem is when in qualify, the car is being forced back to the pits just after starting lap 3 and the 'Drive' button then becoming disabled (i.e the same thing that happens when you get disqualified) I've seen this on other custom tracks except its usually lap 11 that it happens. Very strange lol I'm still not 100% on what data is stored in the AIW, was hoping its just the fastline, centreline, corridors, timing gates etc. If this is all it does, then for the purposes of testing to see whether it's the culprit, could I use the primitive version of the track and export to a temporary file name just to rob the AIW? Many thanks! EDIT: I managed to find the cause of the 'Race' button being disabled which was the garages being too far away from the pit line, when they are in a "stuck" state briefly when try to move them. And it is only during qualifying sessions that after starting the 3rd lap, the car is returned to the pits and the button 'Drive' is disabled, so any help on this would be great!