Sometimes, the actual design is in the processing area, while the bounding box is not, in this case, after doing auto-focus, if you click start on the app, you might get an error message:
So, how can I change the bounding box area without adjusting the design size?
Below provides a tip for you:
Draw a simple design on the canvas, a rectangle for example>Merge the 2 designs to change the bounding box area> Split and delete the rectangle.