The Super Mario 3D World theme has a problem.
Last night while playing Super Mario Maker 2 I discovered a software bug that I was able to replicate myself with the Maker. The bug will get Mario, or whomever you play as, stuck in a Warp Pipe and not able to do anything at the software level. System level features such as the Home and Capture button will still work. If time runs out during this glitch the game will still be stuck as Mario seems to have vanished and is unable to die.