Congratulations to the team and the community as a whole for this pretty amazing achievement.
Turns out the one level that the group was having trouble with was originally uploaded using something called a TAS, which renders it null and void, so they didn’t actually have to beat that one to finish them all.
**Edited title. Making sure that the word ‘level’ doesn’t fit. Have a good day. *
To be clear, only levels the author has beaten should have been uploaded to Mario Maker. That’s the rule that was in place. The level was uploaded but the author never beat it, breaking the rule. That’s why it was rejected for project 0%.