Jochel wrote:As a side note, I think sometimes that error happens when a mushroom falls into lava, or other powerups hitting lava. Not sure that helps or if that's related. You should tell us what episode in question.
That's a bug only in SMBX 1.3. It was fixed for SMBX 2.0, and 38A (sometimes called SMBX 1.4) is a different engine entirely.