I've tested it about a hour ago, increasing the speed of the cannon by x3 solved the issue.
Were you already connected to the island or was it while you were trying to hook it and it kept spinning around? In both cases you should be able to fix it by either shoot 2/3 times with the cannon or hooking something else before. We've to look into it why it keeps on happening ofc.
Some indicator would definitely help, we agree with that. Will add it to my todo list!
Thank you for the feedback! :)