It's been happening a lot lately. We're told by the dispatcher or see on the screen what truck and route we're on. Verify our air and ready to go, then a guy comes in and bumps you to a different truck. You move your stuff and end up leaving late on a blind route. One US said there's a 30 min limit before that route's start time when you're guaranteed that route but I let it go cause I don't ruffle any feathers. I'm not the only somewhat new swing driver this happens to.