Hello,
I was able to reproduce this on Pd 0.41-0 :

the abstraction testt.pd contains an array, which appears in the parent patch testttt.pd although it's outside the boundaries of the abstraction's canvas. If you move the abstraction and click the bang again, the waveform appears at the same distance relative to the abstraction. In another patch I even got this behaviour after turning off graph on parent for the array itself.
Can someone else reproduce this ? (patches attached)

gr,
Tim