Xbox app keeps signing into old account.

Hi I have game pass ultimate on my series x and have been trying to log into my account on the pc using Xbox app but it keeps logging into an account I haven’t

used in years. Deleting that account isn’t an option as I still use the email address associated with the account. I have signed into the right Microsoft account that is

linked to my active Xbox account but it makes no difference. I have also followed the steps for deleting cache in identity folder and it has made no difference.

It really is frustrating that I pay for game pass ultimate but I am unable to use it on my pc.

Any help in sorting this out would be greatly appreciated.

:)