Hi there,
The Reset pin on the C3 isn’t on the bottom like on the Nrf SO I think the pins are being shorted a little on PCB of on the footprint for one vs the other if that makes sense.?
on the dev board the reset only works for me on the NRF’s none of the ESP’s btw ? I put a piece of thin business card between the pogos and the ESP’s , try that and press the C3 reset should work.
HTH
GL 
PJ 
I vote lift one up and test again… 
It looks very nice too the PCB , 