Local Accounts Win 11 removed links

Hi guys, I feel that I need to ask for your help again.

Two nights ago the pc was running perfectly. I turned it off and went to bed. Next morning my wife put the pc in to read some news on her account. It was was not showing, nor is my daughters. My account is the only one visible on boot up yet the other two accounts are still there, in user accounts. My wife thinks there might have been an upgrade, not so sure as I for a small bundle only today. If I click on the three dots on my account box, I get switch user and there are the two missing accounts but the normal log in (by names) is not there. I get my avatar, my local account and in a microsoft window.

So where the heck are my other two accounts. Everything is running nominally except for the two 'invisible' accounts. ????