Vocalchain p1a cant drag points

hi, when using vocalchain, and enacting the P1a EQ, if I grab a point on the high end boost and drag it around the sound defaults to the un effected sound, and doesnt come back until I release the point… If I turn knobs instead, everything updates in real time audition… Its like the plug in has one of those reverse “hear effect only” options that some plug ins have, but I see nothing on the interface for that… any answers?