I hear the Metronome just fine, so just trying to help.
I agree, your situation seems frustrating.

In MIDI Devices I have the default synth set to Coyote DXi
If I hit Record I hear the Metronome.

I also tried using the 'Write to Track' option in the RB2019 Metronome, and I got a MIDI track with data and could again hear the click as played from the track (better than my Click.MID idea).

Did you possibly change your default MIDI synth to something that doesn't produce a click sound on MIDI channel 10?
My Metronome window looks much like yours except I have the count in set to zero (not one).
But if I hit Record I do hear a Metronome.
This is true both here and in another location.

What is your selected Default DXi/VSTi synth in the MIDI Devices area?

/Options-Preferences-MIDI tab-MIDI Device

The metronome should send to this device. Can it play a click sound on MIDI channel 10?



Make your sound your own!
.. I do not work here, but the benefits are still awesome