2nd gen Doorbell. Motion captured but no chime when bell pressed

Just checking if anyone else has had this problem. 2nd Gen doorbell. Works just fine (apart from this). Wi-Fi signal is good, motions all captured as you would expect. No loss in quality etc etc. Numerous times we have had motion alerts. You can see the person outside walk up to the doorbell and push the doorbell. You hear the doorbell chime outside on the video but we don’t always get the doorbell chime notification. We get a motion alert on the phone but no ding dong, not on the app not in the history and obviously no chime happening in the house. Everything is recorded on video without issue but no chime is generated. It’s annoying we then have someone waiting outside to speak to us. This doesn’t happen all the time and is sporadic. Anyone got any suggestions? Third time we’ve called support about it and they can’t fix it.