I rewired and rehoused my Blue Box. I had noise issues so I decided to forget about diode and do the true bypass with DPDT. I was barely shocked when I played a note and heard that bypass is NOISY. All the time I hear kinda of fast clicks. They sound like a slow oscillator.

Connections are correct...
Please help me. I've tried even guitar cable with ground...
Could it be fault of one octave mod? (wire!)
Regards
Luke