I'm flying from IAD to LAX (and then transpacific) on December 3 and always check for flight changes and the resultant loss of upgrade seats.

This time flight 947 schedule was changed to depart app. 30 minutes later so instead of just putting me on that flight the "computer" put me on a flight via MSY that left closer to departure time but didn't get in until one hour later.

Needless to say they also changed my upgrade seats.

I was told the computer is doing this all the time now and the phone agents have notified the computer people.

As always beware and check schedule changes.