Manual brake gets stuck on if you hold it while opening menus.
1. Get in a car on a planet, have parking brake toggled off (confirm you can drive it).
2. Hold spacebar/jump and open any menu (terminal for example).
3. Release spacebar inside the menu, then exit the menu.
4. Try to drive.
Toggling parking brake won't do anything, you need to press space again to unstuck it.