CCS has received reports from users about GMail auto-complete not working for them and opened a support ticket with Google. Google has responded that it is a known issue and that the Google Engineering team is actively working to resolve it. Detailed Google response:
On Feb. 20th, 2015 an issue in Gmail temporarily corrupted a subset of users’ contacts. While the original issue was fixed on the same day, those users who received messages from the previously corrupt contacts have since been reporting unexpected behavior with the Gmail auto-complete feature. After typing an affected contact’s name into the Gmail compose box, you’ll see the contact’s name appear at the bottom of the auto-complete list when the contact should appear at the top of the list.
How to diagnose:
1 – User A receives a message from one of his contacts C
2 – Auto-complete data for Contact C becomes corrupted.
3 – User A composes a message and starts typing C’s address/name on to/cc/bcc field.
4 – Contact C is now listed at the bottom of the Auto-complete, even when C is one of A’s most contacted addresses.
We will update this alert when we receive an update from Google.
Update – Feb. 26, 2015 7:36 PM – We have received an update from Google that the issue has been fixed for all affected users.
-Computing and Communications Services