Previews & snapshots not working on some of my cameras for 9 days...

I'm hoping someone can help because I am beyond frustrated with my ring devices which I have been using for almost 2 years now for some of them without any problem. I have 4 cameras, all wired: 1 doorbell pro, 1 floodlight cam and 2 "regular" cams. Software is up to date on all of them, devices are all healthy and signal strength is excellent on all of them. Yet, for 9 days now, I have not had any previews on the floodlight cam and one of the regular cams. My husband who is a shared user has no problem and sees all the previews for all the cams on his phone (same samsung phone as mine). I have removed the ring app and reinstalled it, no change. I have updated my android software on my phone, no change. I have rebooted my router, still no improvement. I have also tried to download a snapshot on any of the cameras and it is giving me a download failure message (even though snapshot capture is enabled under all devices). I am reluctant to reboot the cameras because my husband has no issue at all on his end which is really weird given that we have exactly the same setup. Any suggestion?