What has happened to Mario Circuit?!

[devingeneral1992]

The problem is simple: I can't choose Mario Circuit. At all. It freezes every time. Not using any modifications of Brawl. I USED to use BBrawl but have since removed it. Why is this happening?

EDIT: I should probably clarify: This happens with AND without BBrawl.

[BreakneckWalrus]

Just to make sure, you're not playing any edited version of Brawl? Are you loading Brawl from the disc channel? And, is your SD card inserted when you try to load it?

[NekoJin]

Using My Music Modifier you can corrupt your file, and some stages won't be able to be played anymore.
With Stage Resetter codes you can reset that stage and play again!
Mario Circuit reset code:
4A000000 9018CDEC
5A010000 000000D0
14000000 00002725
14000004 FFFF0632
14000008 00002726
1400000C 00000632
14000010 00002727
14000014 00480632
14000018 00002728
1400001C FFFF0632
14000020 000027D5
14000024 00480632
14000028 000027DE
1400002C 00000632
14000030 000027CB
14000034 00000632
E0000000 80008000

hope this helps!