1) It is a black edition so I assume it is current. On the rear triangle there is a black disc. That needs to be adjusted so when the bike is fully folded and the seatpost down, that disc is 1-2mm clear of the seatpost. Too close, and the seatpost can't move freely past that disc. Too far, and the frame moves enough when picking it up unhooking the hook on the front axle.

2) It slants down a bit by necessity in the folded position.

3) What he said - try to gently form the fender stays, but not the rack struts. See exactly where it rubs, report back here.

4)

5) A little play is normal.