small stone trouble - NOT volume drop

[KaptenSpark]

I bet I have to take care of the supposed volume drop in the future but I haven't gotten around to it - there are worse problems.
I get no sound at the output, though I think there were some at one time. I audioprobed it and I got perfect phasing sound inside of the .1 uF cap right before the input. But still - nothing on the side of the cap where I'm supposed to hear. What's up with that?
Even more strange since, with the audio probe, the only thing I change is a .1uF for a .1uF. I know I didn't wire the output jack wrong.

Now I don't know if this makes any sense at all, it'll just keep me awake all night. Cheers.