Stick up cam 3rd gen will not connect to existing chimes

I’ve had 3 ring cameras for years and two first gen chimes. All working fine.Recently I’ve bought two 3rd gen stick up cameras, they have all connected fine and are working, but I can’t get them to connect to my chimes. When clicking ‘linked chimes’ I just get ‘hmm something went wrong, please try again later’All my existing cameras are fine and connected to the chimesTroubleshooting so far;Rebooted new camerasRe-added chimesRe-booted rooterChecked all settingsHas anyone else had this?Is it a compatibility issue between the 3rd gen camera and the old chimes?