This session shows a missing dependency as kuid:447264:100001, which is probably the route. It is possible that it has not passed through the upload process yet. You will need to contact Mr Auran if it does not appear as they are the author (also known as JamesMoody)
Anyway, based on the kuid number (100001) this is the first asset he ever made, which makes me assume he made a session for a built-in route.
Since you seem to have every version of trainz except for the ipad version, my guess is it is for a route in the ipad version.