From GameWatcher: “Borderlands 3 is out now, and it offers a vast play area over multiple planets – not just the huge waste of Pandora! Consequently, if you want to get around with any convenience, you’ll probably be using fast travel a lot. Unfortunately, as of right now there are some problems with the service. If you get hit by the Borderlands 3 Fast Travel bug, what can you do?”
Source: N4G PC Borderlands 3 Fast Travel Bug – Is there a fix if you can't fast travel to your vehicle?