I've read that rankable maps need 2 or more difficulties but, even tho the vast majority do, there are plenty of maps with only one.
I also have more questions here in my first map's description: https://osu.ppy.sh/beatmapsets/894622#taiko/1869432
but this question was the only one unrelated to my map.
I also have more questions here in my first map's description: https://osu.ppy.sh/beatmapsets/894622#taiko/1869432
but this question was the only one unrelated to my map.