the newest  version has problems with the slime block you cant stand on the midle when the piston is pushing it up it only moves you up by one block dose not lonch you up its like a solid block and the only way ti jump you up in nide to stan it the corner of the block and is a too high risk of faling of. Alot of  redstone constrapsions dont work is they use player transport with slike bloks. Please fix tis. Have a good day.