The brakes on all the vehicles in all maps are stuck on. How can I fix this? Has this happened to anyone else?
Have you mapped all the controls to the button you wish to use for that action? The default configuration might have what you think is the accelerator as the brake.
This is impossible. When loading a map, pressing the brake makes the car reverse. Are you sure the physics are not frozen? Does the engine rev? Try going to the control option, and select hardware. When you press the accelerator or the brake, does anything on screen change?
If you leave it alone while stopped will it try to reverse? Are the brake lights perpetually on? Have you checked the parking brake? You could go to input mapping in the menu and go to the tab that lets you check for button/control functionality to see if anything is showing input that you aren't doing. You could also do a quick check by unplugging the controller and trying to drive with the keyboard to see if that fixes it.