Grunting sound playback from where staccato and accents have been added

I get grunting sounds on playback after adding staccato and accents. Is this from the Hallion sampler or from the notation software?

Welcome to the forum, Brian.

Is it possible that you’ve manually reassigned instruments from within HALion? If so, you need to update the endpoint for the instrument so that it points to the current Expression Map. See a recent primer here: Strange low pitch sounds in some instruments - #2 by pianoleo