Ive recently bought a pitchfork pedal, which i very much like however I am having an issue with buzz that is causing.

If I have my pedals in the following order:

Fuzz face -> Pitchfork -> Buffered splitter

There is a terrible terrible buzz through my amp

But if I change the order to:

Fuzz face -> Pitchfork -> Peterson strobostomp tuner -> Buffered splitter

the buzz disappears.

pitchfork -> Fuzz face -> Buffered splitter also works, but then the fuzz doesn’t because of the buffer

So its the pitchfork into the buffer thats causing the issue. Any suggestions on why this might be? Its so much buzz its unusable. Some sort of impedance issue, but why would that cause buzz?