Chart drops to zero instead of showing no data

Hi,

A dynamically calculated KPI returns "Nothing" for future months in the Actuals and therefore I expected the line in the advanced chart to stop at the current month. However, it's not doing that, instead it is dropping to zero, creating a rather undesirable effect.

I can't imagine that this is the default behavior of OneStream. Am I doing something wrong? Did I overlook a setting or is there another way to prevent the drop to zero for non-existing data?