I build an elevator with a piston, that piston will keep pushing up a block for going up. On top of that block has 2 open gate fence which will work as your place for going up or down from elevator. If I'm going up the piston will push up, it's need to goes me up too because that block will carry me up but it will not carry me up I glitch at a block where I standing, So I need to jump & jump to goes up because it doesn't carry me up.