I have one NW flight (pure NW - NRT/SIN) showing on delta.com -- TWICE, both times with the wrong dates and flights!
Once it shows with departure wrong day (day earlier than it really is) and return wrong day (day earlier than it really is).
Second time it shows with departure correct day, but one of two flights there is wrong, and return is still the wrong day.
The correct one (as actually ticketed and really exists) only shows on nwa.com.
The scarcy thing is, it all shows as "confirmed" on delta.com. So just for one iteneary it seems that now I have "three seats" allocated to me in both directions: sometimes two seats on the same flight, at other times apparently I am flying out over two days on three separate flights the same route... ?!
If that is how DL really has it in its systems, no wonder why the award inventory is now so low, if DL incompetent IT

has managed to duplicate and triplicate existing itenearies. I think it'll be chaos when people actually fly and if some try to go on the wrong flight that shows up on delta.com, but of course does not have a real ticket issued (on delta.com no way to see a ticket, only to "e-mail receipt," that of course never works: for a good 10 itenearies it has only worked for one, for 9 out of 10 times it fails with a generic error).