[Skyblock] Harvesting Cocoa Beans

Username: LouiseXminerX
Where this bug is occurring: Skyblock 2 on my island.
Descripiton: On my island, a couple of days ago I expanded my cocoa bean farm. But 3 rows seem to keep being harvested by something. Of course, I didn't harvest them and it's annoying for me. When the cocoa beans has been harvested it drops the cocoa beans on the ground.
Here's of screenshot of which rows I'm talk about:

As you can see above, there's 3 rows of cocoa beans, and some of them has been harvested and dropped on the ground.
Is there a solution to this problem? Please let me know anyone if there is.
Thanks :3

 

Is there anyone else on the island? You can also replace the jungle logs to see if that helps

 

Well they usually drop when I'm eather away from the cocoa beans on the island or when I disconnect or not on the island.
I replaced the jungle logs with completely new ones but the cocoa beans just keep falling off.