Ring Video Doorbell Pro not always notifies ring

We've been using the Ring Video Doorbell Pro for a few months now and we've noticed since the start that when you push the button it always emits a sound but sometimes we don't get a ring notification (not in the app nor on the chime) but we do always get a motion notification and video. The chime (2nd gen) is located right above the modem in the hallway.The modem is in the same hallway about 2 meters away. The signal strength in the Ring app of the Video Doorbell Pro seems fine (RSSI -51), as well as the chime (RSSI -30). The signal strength of both in the modem seem always full bars on 5 GHz for the Video Doorbell Pro and 2.4 for the chime. Transformer voltage seems fine in the Ring app (Good / 17 V).We don't get some of the typical lost / poor wifi symptoms because:-we always get a motion notification and video-video quality is always good (both in live view and recorded)-live view always connects-live view never stutters nor freezesWe use 2 iPhones, 1 Android phone, and a 2nd gen chime that all always have this problem at the same time. The Ring apps are the latest version and the Video Doorbell Pro and chime firmwares are the latest versions.I think it does properly notify a ring about 8 out of 10 times but it's just not reliable enough. Does anyone please have some suggestions of what might be wrong?