Title pretty much says it all.

Not a verified explanation, but we've long speculated that it has to do with how it's constantly loading and unloading new parts of the level much faster than the game is built to load.

I think it's more likely to happen on Playstation 2, due to the console being slower than both the Gamecube and Xbox Versions. Including longer loading screens, the frame-rates dropping slowly, sometimes, even floor loading in when you open a door. (Happens to me in Cosmic Fall all the time)

Though, for any new players out there, I think it's still in the Gamecube Version but I don't have the Console + Game and I don't know if the game would have a less chance of crashing than the PS2 Version. (It happened to me a lot believe me)

I wish I saw this before posting my thread, but oh well. This should clear this up: https://www.speedrun.com/shadowthehedgehog/thread/8ibmm