Grace note ties ignored in playback

When you tie a grace note to the principal note (such as a written-out arpeggio), the principle note is not actually held. Once the principle note is reached during the playing of the grace notes, the note ends and playback ceases.

To replicate:
1) Create a note
2) Create a grace note on said note
3) Tie grace note to principle note

Expected: Grace note plays, and is held for principle note duration
Actual: Grace note plays, and is held until the principle note plays