Combine frozen cherries, juice, sugar, dried cherries, cinnamon stick, and butter in a saucepan over medium-high heat. Bring to a simmer; reduce until liquid has thickened slightly and dried cherries are reconstituted, 20–25 minutes.

Stir in preserves and tapioca until incorporated. Simmer until mixture thickens to a jelly consistency, 5 minutes more. Discard cinnamon stick and transfer filling to a bowl to cool. Refrigerate until cold.