We are using our android phones as our presence sensors. I am the primary user. ST seems to favour me over my wife. garages open for me but random opening for her. After leaving home ST app indicates that my wife is still present. I deleted her twice from the app and reinstalled with a new phone. After few days ST behaves the same way.
Does she have her own account that is linked to your hub location? Or do you login with the same credentials on both phones?
There is an existing thread on this.
You might want to raise a ticket as well.
I have raised one today listing everything I have tried to resolve the issue.
Her own account that is linked to my ST account