Chime pro ok w 1doorbell but not 2

Doorbells worked with chime pro before I moved and only initially in the new house. Now it only works with one. Other doorbell completely works, sends notification to my phone, makes noise, records video etc, but I cannot connect to the chime pro which means if someone uses it we won’t hear in the house. I have tried to reset the doorbell a million times. It asks me to add a new chime pro, which I try because the app says it cannot find a chime pro installed. But other doorbell is connected to chime pro! These doorbells are 10 feet away from each other.