user frequently has to enter password twice
On my 2020 Mac Mini (also on the late 2012 model that it replaced) there are 4 user accounts - mine, my wife's (both standard users) and 2 admin accounts. Very often if I am logged in and we switch to my wife's account using the fast user switching menu in the upper right, she will enter her password and hit Enter. Then the screen will go back to the login screen with my account shown asking for a password. She will hit cancel and the screen will then show her user ID and she has to enter her password again. This never happens when switching from her account to mine, but happens often when switching from my account to hers. Any idea what might cause that a login screen for my account to show up after she correctly enters her password? I thought I was done with that when I set up the new mini, but it started happening after a week or so. Running Catalina 10.15.5
Mac mini, macOS 10.15