Dalaran Auction House Bugged

1. I've put following items for sale on Dalaran auction house
- Carapice of the Forgotten Kings
- Deathfrost Boots

2. I've entered Random Battleground

3. I've return to Dalaran auction house

4. My items not exist on auction house page (i've also reload my page)

5. I've tried to put something else for sale
https://imgur.com/a/p3xNwqh

6. Same problem occurs

Not sure if my items have disappeared, but AH is lagging like hell these last days.