@Alex Sawczuk @Coutie I've gotten a Request, if i would know, why the Pit Lane of a Track doesn't show up in the Menu (the first below Screenshot). I've never seen something like that before and so i've made some Tests. To keep it short, the Reason seems to be, that the Track is too small. It is a Kart Track and in one of my Tests i enlarged the Track a little bit and made a new AIW and with that, the Pit Lane did appear. So i took the original Track and added a Pit Extension Path (green in the 2nd below Screenshot), to make it a bit bigger and with that, the normal Pit Lane shows up too. So i suppose, that the Problem is somewhere in the Code, that gets used to display the Track "Schemes".
Thanks, I can make a bug report for it. Could be to stop random small path branches from showing, since they're usually quite small.
