Where did my contact groups go? How do I find them?
Clifford Daimler shared this idea
Please click on the Contacts icon from the right side menu to access your contacts. You can also begin to type the name of the contact or group’s name in the ’’To’’ field when composing a new message.
You can also restore any missing contacts, here’s how: https://help.yahoo.com/kb/SLN28061.html