i can create new islands but whenever i type /home i get teleported to an old coop island. i've tried /coop leave and tried /sethome but nothing works, so i always lose my island whenever i type/home because the only way i can return to skyblock is with /newisland

 

okay this is a small bug a few people have been having.
For a fix you must leave your current coop (remember to have another coop to invite you back)
Then join another random coop, after that ask them to kick you.
Then join your current coop again.

This should fix the problem

 

Just type /newisland replace and wait 5-10 minutes then do /home, it should work then.

 

didn't know that fixed it
anyway il use this next time

 

Its what worked when I tried it on my alt, and when people say in chat /home takes them to there old island they say it works as well.