My PC won't let me sign into my other account

Every time I turn my Windows 11 PC on it just automatically signs into the main account and won't let me switch. I click the logo in the bottom left and then the profile, but it just closes the window as if I clicked off. I have tried many other ways, like clicking CTRL ALT DELETE then sign out. But it shows only the main account as an option for me to sign into. And I know it didn't delete my account, because when I click Family and Users in settings, it shows my other account yet doesn't let me switch.