Booked some flights on China Eastern via Expedia and am running into a couple of very minor, first-world issues. Would appreciate any insights

1. Frequent Flyer Membership
Inputted my DL SkyMiles number during the purchase process (100% sure I did this because when I selected SkyMiles as the program, my number automatically populated). However, in the Expedia confirmation email, it looks like they took it down as a China Eastern membership but with the correct DL number. Anyone have any experience with this? Is it simply a glitch on Expedia's end and it'll show up correctly when I check in? Tried to look at my booking but unfortunately CE only supports Ticket Numbers on tickets booked directly on their site...

2. Seats
Selected seats during the purchase process as well but these seats didn't seem to have carried through on the CEAir site. Am able to access the seat selection tool, but only see 3 of 4 flights. Anyone run into this issue and/or know a way around? Want to ensure I pick seats since I'm travelling with my family

Thank you