When I press play, it automatically moves me away from my city, and into the mountains. I can’t control my character, and there are random blocks and floating trees everywhere. How do I fix this?
Looks like your city is a very big object that your camera collides against. Try to disable camera collisions to see if this fixed your problem.
To do so, double click on the camera item, select Camera in the item inspector and toggle
Hope this helps! If the problem persists, feel free to share the space with us so we can take a closer look at the problem.