Hello fellow mileage is missing-ers!
From
UA Insider's post in
this thread, it looks like the mileage posting process was turned off again to reapply the correct mileage between city pairs. She said it will be turned on again tomorrow for flights since 3/6.
Now, my flight pre-3/6 did not post but that was due to the ON/R issue. That was apparently fixed and hopefully I'll see that credited along with the others.