Originally Posted by
Kacee
I just ran into the "no upgrade available" error attempting to apply RPUs to LAX-EWR. Website would not let me apply them to the reservation. Had to call. And then the agent's computer insisted that he ask me
all of my security questions. To apply my RPUs to a ticket in my name. Really high risk of fraud in that transaction
Agent suggested I contact web support to report the error. I responded that UA is well aware of it, it's been going on for months, their IT people are too busy writing code to further devalue MP to fix the website. Then I had to apologize for venting at him 
I think you're referring to the problem in which sometimes the RPU/GPU radio button says you have no certificates left even though you do? And at the top it shows only mileage balance, no RPU/GPU balance?
If that's it: I found that going back to the reservation list, opening another reservation, going to the upgrade tab to display the instrument upgrade offer, and then going back to the first reservation will bring back the instruments and allow you to apply one. Really obvious.
Or maybe that's an entirely different problem.