I recently acquired a MXR EVH Flanger a few weeks ago and a Freqout pedal today.. If a create a send/return in the Helix and put one of the pedals in first position(tried 1,2,3,4 send/return)....it creates a lot of noise when either pedal is on (unusable). When off no noise/hiss. If I put it second or any other position it’s fine(rules out bad cables)....Tried each pedal separately, same deal. Not a noise gate issue...I don't think, I'm using the built in noise gate not a block, tried adjusting. Do I need a noise gate block after the send/return in first position? The noise I'm getting is a bad hiss like I'm running super high gain with no noise gate. Not understanding why this issue is happening.
thanks for any advice...