Korean Air Skypass - DL Codeshare#, KE metal. Do DL's seat assignments EVER stick?

I have flown 4 segments with KE using DL codeshares.
If you call KE for seat assignments, they can't help you. You have to call DL.
You call DL, get your seat assigned. It's in the reservation, viewable online.
You arrive at the KE check-in counter. You have all new seats assigned. Windows become aisles, and the opposite. Bulkhead seats disappear.

Am I just REALLY unlucky, or do the seats just disappear for everyone?
Also, be careful about your FF#. They entered my NW Plat # when I called DL, but at check-in KE didn't have it.
She entered it. It printed out on JFK-ICN, but I later noticed it wasn't on the ICN-BKK segment.
I asked at the J lounge in ICN, and she added it after about 10 minutes of clicking around at the computer and three (3) staff trying to add it. Whew! You'd think that, after 5+ years of codesharing, they'd have some of this figured out! :eek:
Why do I go through this? Because the inflight service, food, and AVOD are excellent.... plus ICN is an easy airport to transit at--plus I get some good prices on DL tix! :)

This happened to us on 3/3 KE DL codeshare flights in PURCHASED J. Totally annoying when bulkhead seats became the seats directly in front of the galley, potty and kitty corner to the stairs. Instead of a quiet night between LAX and ICN, I was bumped and waken up all night, heard the door on the toilet and all the cooking noises.

I tried changing them back at the KE check in desk (when I noticed the problem) and at the KE lounge. They all looked at me like I was crazy- and said that unfortunately the seats had already been given to someone else.

On top of this, we also lost our seats on our domestic flights as well.

And the bigger annoyance was the truly cruddy business cabin between ICN and CGK- almost an 8 hour flight with pitch shorter than domestic first here in the US. And not much recline to the seats.

The bibimbap was yummy though. :rolleyes:

BTW, has anyone ever seen more than one or two people in the first class cabin? Seems like they might be better off getting rid of first class on the smaller planes and upgrading and expanding J so that it is actually a decent product.