Franc,

"It looks like this is open circuit.
Zener Test with Ohmmeter of Multimeter
Negative Probe on Cathode (Black Strip) ~140 K Ohms
Positive Probe on Cathode (Black Strip) ~167 K Ohms
I'm not sure what you are doing here. You should connect one probe to
one end of the zener, and the other probe to the other end. If that's
what you were doing, then you should have used the diode test function
of your meter.
power on
Vin ~111 V
Vout to 0 V ~200 mV

Redid the tests using the diode test function of the meter and got the same results.