R15 b5 : Fairlight : Ghost of effect cannot be killed

+) After adding a 'PITCH' effect to an audio track in FAIRLIGHT and then binning (ie DELETING from track) - the effect UNEXPECTEDLY is applied to the track at a RANDOM location (see attachment).
There is no effect in the track .. and no way of fixing this problem.
Reloading the PROJECT fixed the CORRUPTION.
AJ
There is no effect in the track .. and no way of fixing this problem.
Reloading the PROJECT fixed the CORRUPTION.
AJ