Full screen/window switch

[BurpyMcFistyGuts]

When switching between full screen and window mode, do graphics have to be destroyed and then reloaded ?

[netmaestro]

I'm pretty sure they do. A windowed screen and a fullscreen aren't designed to coexist and when you load/catch/create sprites they are attached to whatever screen you have open. Once that screen is closed, the sprites are gone.