This is somehow happening now, and furthermore, I swear I was on Fortune Island, so it’s like since it can’t recognize the Mitsubishi in your array of cars, it resets to your set home and your first car instead of Horizon Festival on Fortune Island
Same thing happens to me too but with car pass cars instead
Not just with Mitsubishi. I have the same issue with the new 2019 Porsche Carrera S (Car Pass car). This has been a problem with the game since launch, though. Maybe all Car Pass models are related.
it does it with any DLC car and has done since release
also you always go back to the house you set as home unless you set the festival site at Fortune island as your home