Minecraft Username: Kissthis Brief Description: Reset my skyblock as got seriously annoyed with it while I had a migraine - Not one of my better ideas. Challanges did not reset so I am not unable to get any mobs eggs etc for my island. Reset Skyblock at level 138 like a crazy person, log off. Come back later and do /c to discover your challenges have not reset. Not sure if this is a bug or very poorly warned about bad luck on my part.
IIRC that's intentional because challenges can only be reset with 200 nether stars, otherwise you could simply leave someone's island and re-join it to save yourself 200 stars.