Original Chime Doesn't Work After Doorbell Pro Install

Products: Ring Video Doorbell Pro with Pro Power Kit, Nutone BK125LWH-1 Mechanical Chime (on the compatible list). Nutone chime is 1.5 years old (new house), so I don't think power or wiring are an issue. Today I installed my Ring Video Doorbell Pro. Prior to install, my mechanical chime was working. I followed the instructions - turned off the power, installed the Pro Power Kit, installed the doorbell, turned on the power and did the setup. The Ring Pro works great. However, my mechanical chime won't work. I checked the app to make sure "Doorbell Chime Type" is set to "Mechanical". I even tried changing it to "Digital". No luck getting my mechanical chime to work. I tried searching to see if others have this problem, but couldn't find a solution. Has anyone else encountered this problem and/or have a solution?