The machine resolution is 0.0125mm so you need to take this into consideration when setting your height of the pickup. For example, 0.1mm wire would be okay as 0.1/0.0125=8 which is an even number. But it you were trying to use 0.12mm then 0.12/0.0125=9.6 which is not an even number and out of range of the machines resolution. You will see that the software checks for this and changes the calculated wire to 0.125mm as it have rounded the 9.6 to 10. Next the software will check the pickup height and make sure that the wire size calculated will fit against the amount of turns and the wire size chosen. It will adjust the height of the  pickup to suit.