Windows Live Mail reverts to 3 year old contact list?

[hucker75]

A friend's Windows Live Mail (version 16.4.3528.331 in Windows 10) has reverted to a contacts list from 3 years ago. Any ideas how this could happen and how to fix it? They live 500 miles away so I can't see what's happened directly. It's not like it's just forgotten some, it's put ones in that she'd deleted.

 

[agd87]

I had the same issue opening up the Skype app. It showed all my old MSN contacts I had from 15 years ago which I thought I deleted then they disappeared again.