OH BTW FOR PEOPLE WHO USE CUSTOM MAPS: if you notice some maps don't show up in the menu, try naming all the files within that song's folder the exact same name as the folder itself! if even one file is not the same as the folder it causes it to disappear from the custom maps menu, but it'll reappear after naming it correctly.
edit: almost forgot, there's also an error that if a song has a period in the name (.), the period and anything after that will fail to show in the menu select.