@BRoby 

Hi,
On the Tapo app>Cameras tab, there is a Play icon on each camera's page, and you can click on it to see the camera's live stream.
I did a test and found there is no problem watching a camera's live stream with the shared account on the Cameras tab.
If your wife has an issue when watching the camera's live stream on the Camera tab after tapping the Play icon on the camera page, is any error message displayed, or do you see other phenomena?

Best Regards

  @BRoby 

Hi,
You can check if the following tips will help.
1. Please check if the Tapo app installed on your wife's phone is up-to-date, update the Tapo app from Google Play/App Store if it's not the latest one.
2. Please check if you can watch the cameras' live stream on the Cameras tab after you log in to the Tapo app on a different phone with your wife's account.

If the issue persists, please help confirm:
1. Can you watch the cameras' live stream on the Cameras tab after logging in to the Tapo app with your owner account?
2. Can you share a picture of the Cameras tab on your wife's phone that displays the reported issue?

Best Regards

  @BRoby 

Hi Brian,
Glad to hear your cameras are working fine now and you can enjoy your cameras~
Best Regards