Pro 2 Door Bell - Issues with Two Mechanical Chimes

Hello Friends, I hope you can help. I am not getting anywhere with Ring support. I have a newer house, one front door/door bell and two mechanical chimes, one on first floor, one on second. I have the Ring Pro 2 installed, device health shows all it good. Problem, only one of my two mechanical chimes is working, the one where I connect the Ring Power Pro v3 module dongle does not work/chime. My transformer puts out 24volts. If I take the Pro v3 module off, the mechanical chime sits and buzzes or vibrates. What do I need to do. Thank you!