Yeah, I've noticed that behavior sometimes as well ( EDIT: 1-click GroupInitiative, not using TurnTracker). Haven't spent the time to figure out the exact repro steps, though, because sometimes it works for me and other times not, and I never think of it when I'm not in the middle of a session. Maybe when on a different map or something? Does clearing it when on the original battle map work? Think it started happening when the Devs pushed out the recent turn tracker update.