Try switching the wires at the back of the pro. Also, please check if your indoor chime is compatible with the Ring pro. https://support.ring.com/hc/en-us/articles/209028546-Ring-Video-Doorbell-Pro-Chime-Kit-Compatibility-List
Try switching the wires at the back of the pro. Also, please check if your indoor chime is compatible with the Ring pro. https://support.ring.com/hc/en-us/articles/209028546-Ring-Video-Doorbell-Pro-Chime-Kit-Compatibility-List