setXshift for dots

[JoniPfeil]

Hi there :-) Love using vexflow! Now I ran into an issue though:
I can change the yShift of dot modifiers via setYshift, but if I try to change the xShift it will not move the dot. Seems like the xShift value gets overwritten with 0.
I need this, because for 8ths notes the dot appears too far right (because of the note flag). Or is there a better solution for that?
Thanks for your help!

[JoniPfeil]

Did some more testing. xShift gets set to 0 by formatter.format([voice], 400);
I don't know how to fix this though.