currently I´m working on a mix where I´m experiencing “side-chain-like” compression of an output track (from Groove Agent) with a “clap” sample by a vst synth (Prologue). I have no inserts on the tracks that could casue it, no SC compression, no gate. When the Prologue starts to play it markedly reduces the volume of the GA´s track with the clap sample, especially when Prologue plays higher tones. I don´t understand it at all, but it´s really evident and considerable. Do you have idea what it could be caused by? Is it maybe any natural interference of some mix parts with similar frequencies or anything alike?