There is a glitch on skyblock, but I don't know if I'm the only one with it. So, I've been trying to invite my alt to my island (I left the island that my alt had) but it kept saying that my alt was already on my island. But when I went on my alt and tried breaking blocks, it wasn't working so I recorded some footage of it to show you:
The party system is messed up due to the new 1.8 updates so your gonna half to contact @Noobcrew about this issue.