In SC CT, there is some instances of the windows not "visually" changing state. The enemies respond to them being changed, but for some strange reason they don't appear to change. If your copy does this, it will NEVER display properly, but if your copy does display it- it will never stop displaying properly.
After talking to UBI they have no explanation(which they originally denied even being a problem) and for the fact it doesn't change the gameplay, will not do anything about it
I figured I would pass this along incase anyone else runs into this, and so they dont have to spend 30 minutes on the phone being told they are WRONG, the disc is fine, its your GameCube, a corrupt save, and all that other stuff like I was told.