Grace note too loud - with NP

A grace note in front of a pp-note or ppp note or whatever pops out in forte.
I tried everything

  1. changed velocity in the properties panel: no change
  2. changed velocity in play mode: no change
  3. suppressed the slur in front of the main note: no change

Any help out there? Or is it just a NP problem?

sorry, but when I did a quick NP test project, the grace note is at the same volume as the rest at all dynamics. You don’t say what instrument you’re using so best to attach a sample project which demonstrates this behaviour so we can check.