Originally Posted by saturnsk

It appears there are some changes going on today with the MileagePlus System. After logging in:

Please note: it may take up to 72 hours for your combined award balance to display. Be assured that all award miles, Premier qualifying miles, Premier qualifying segments and upgrades in your MileagePlus account are safe as we finalize our system migration. Also, changes to your account profile are not available until the transition period is complete.