.... which uses a ceramic resonator with internal padding caps....
retrolefty, good info!
Sometimes there is parasitic capacitance between the crystal and GND, and this added to your 22nf caps prevents the microcontroller from starting.
mart256: I measured capacitance with the tester at the board, from one side to GND pin header, and with bridge to GND very close to each caps, that was 80 to 82p. It should be 44p (!?)... I think that is confirmed your theory!