Sure, no problem. Looks the same as before, so sadly not fixed in fullscreen 21:9. I think i figured out how you can reproduce the effect. Just force the window mode (alt+enter on windows) and the adjust the window to be quite wide. You'll notice how areas of the game vanish. What is pretty cool is that the playable area is always correct (as big as the window), so i can modify the playing field :D
Viewing post in DPad Dungeon jam comments
ah, i understand now! not sure why it's happening yet, but at least i can reproduce it. probably has something to do with the screen resizing and not scaling the camera view to account (or something).
i think the reason why it's all still playable is because the screen wrapping and enemy/pickup spawning are all dependent on the screen size (not a static value of what i expect the screen size to be). so when the screen size gets out of proportion, it messes up the UI and background image but is still playable. neat! thanks for the insight!