I build this mob grinder: https://www.youtube.com/watch?v=UN0sKkWhsfA
But i used obeservers instead of pistons with slimeblocks because there enabled on this server.
Everything works fine, but all of my chests turn into stone blocks and wont work, so im afraid i build the thing or nothing. Someone knows this is lag? Or another server restriction? On singleplayer it all works fine.. any ideas?