Hi
Under 'Public Transport version 2' routes ... the stops must be in the correct order from 'start' to 'finish' .. the same order as the ways are. 

As such the introduction of the stop/platform 'Parramatta North Carpark' is not in the correct order.

I leave this for you to fix. 
See https://tools.geofabrik.de/osmi/?view=pubtrans_routes&lon=151.02207&lat=-33.80826&zoom=17&baselayer=Geofabrik%20Standard&overlays=ptv2_routes_valid%2Cptv2_routes_invalid%2Cptv2_error_ways%2Cptv2_error_nodes%2Cptv2_routes_valid%2Cptv2_routes_invalid%2Cptv2_error_ways%2Cptv2_error_nodes 