Virile Boost + Auditorium Test Stage

I have finished a build of the Virile Boost. Bypass sounds great, but when the effect is engaged, I get a loud hum along with the effect. This hum is present in the 4k7, diode, and a few other places when I use my audio probe.

Is this a sign of a poor grounding? Do I need to ground the Auditorium Test Stage as well? The effect sounds great, but its drown out by the hum of what I think is a bad ground. I have not tried to put into an enclosure, I assumed the test stage was designed to test a board before putting it into an enclosure. Super bummed out, any help would be appreciated!
 
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