I am using an SWU for a trip. The domestic portion was on WL even after trans-pacific 744 Y->C cleared.
The domestic portion finally cleared and it says:
Flight: Confirmed
Upgrade: Denied
I guess they queue the UDU upgrade and since I already got upgraded on the SWU, the UDU is unnecessary and denied.
The extra WL segment no longer shows and the the remaining segment shows my F seat.
Maybe someone from UA was watching Suze Orman when they came up with this word