I will try to lay this out at clearly as possible, but please ask if there is an other information I could provide:

My fiance and I were on a flight Sunday, but I purchased as two separate intineraries. We are both Silver and bought the same fare class. I checked her in just after the 24 hour mark to be as high up on the upgrade list as possible. Then I logged her out and I checked myself in. She was sequence #3 and I was sequence #4. I wasn't at a computer with a printer at the time so I printed our boarding passes out the next day.

Three hours before the flight, I get my EUA notification text message and assume we both received upgrades because she was ahead of my in sequence. When we get to check in our bags, there is no indication that she has been upgraded, so we check with the check-in agent and first is checked in full.

We get to the gate and try to find out more there. The gate agent confirms that she is above me on the list for upgrades and cannot tell us why she did not get the upgrade and I did. She recommends that we call Onepass because she doesn't understand how upgrades work anymore. We call the Silver Elite Line and after a lot of holding and waiting and transfering there are two answers given:

I got the upgrade because I printed my boarding pass out before hers or because I purchased my ticket before her. I do not understand how either of these could be possible because her sequence was above mine.

Could I ask if this sounds logical or if there is an issue that needs to be looked at with the EUA program? How could a sequence #4 get the upgrade over sequence #3 with the exact same status and fare class?