Move not does mot work everytime

Hi,

I have some trouble with "move". Sometimes it does it job and sometime it cannot move to a corner of an object. I have to move it 2-3 times up and down and then I can move it to the corner. What I am doing wrong?

https://readycloud.netgear.com/client/dllink.html#t=0t2kjakyrf8vpv9bja9tv1cabll/Halter%20Schraubenzieher.rsdoc

Cheers,

Nils