There is nothing to do whether you go to a large island or a small island.
Little wild boars running away from me
Even a huge wild boar rushing to kill me.
Even the giant crab that tried to tear me to pieces with its huge claws.
Stones and trees scattered in the field
rock that can be dug
everything has disappeared
What the hell did the developers do to the game?
May I get the seed so I can try this out?
Most the things you mentioned sound fine, except disappearing objects.
Playing a game on an Online Host