The pass tells you when there is something new
The WARPATH strip on the play screen now flags a level you just unlocked, once, so a new reward does not sit there unnoticed until you happen to open the track. The same cue fires after the daily spin pushes you past a level boundary.
The claim count next to it counts only levels that actually have something waiting, so the number on the badge and the number of things you can collect finally agree.