It’s now 6.30am Friday (PDT) and the Scheduled Departures are still showing for most of yesterday (Thurs). I hope this is a bug, as it makes the list almost useless. 
We’re looking into it.
On a similar note, American Eagle flights 3893, 4066, 4203 and 4234 all left ORD on time this morning, but FA has their flights in the SCHEDULE DEPARTURE column still, not the DEPARTURE column (and all the flights have a track with them.)
This should be resolved going forward.
I think I have the same bug as well. Most flights regarding PIT haven’t been updated.