[Z height not correct]

I redid the test of the xyz cube and I have an error of 0.2 in z whereas I had already done that not longtime ago 

 

maybe because I had moved my eccentric ?

[Z height not correct]

Hi, I have a problem my Z height on this print is not correct but when i do the 20mm cube my z height is perfect but I don't know why on the others it's not

I already change my z steps, what should i do ?

and also my top layers is not perfect (little holes)

 

10% infill / PLA / 210 and 60 / 55mm/s / Ender 3

 

Thanks