Same experience
We also have the same experience. My AOS was approved last week after 12 months of waiting. But, my wife’s case is still pending with CSC though we applied together. My approval came well ahead of the posted schedule. At this moment, we are not able to file an inquiry till her case becomes overdue. I don’t know what we can do to speed her case up, or to understand why both cases were not approved together.
Xun