Line chart grid lines shift when there is no data

I use multiple line charts identical X position,  Y position, width, height, and every other way, overlaid on top of each other so I can compare their plots.  Each line chart is bound to its own slicer so different graphs can be selected.

One of the choices in the selectors filters down to one record to be graphed - the plottable values in it are null, when this is selected, the y-axis grid lines shift slightly for that graph.  Is there any way to prevent this from happening?