Auction House Bids or Auctions Tab Empty

There are a few things that can cause the auction or bid tabs to show blank.

• You listed an item, the auction expired, the item was sent back to your mailbox, and you don't remember picking it up. 
• You successfully sold an item, the gold for your sale was sent to your mailbox, and you don't remember picking it up. 
• You bid for an item, you were outbid, the gold you bid was sent back to your mailbox, and you don't remember picking it up

If none of these are true please try a UI reset to make sure there is no corruption in the UI.  If that doesn't help we recommend submitting a bug report.