I had 190k in my inventory and I left game to look for some things on the AH. I opened the AH, before I did anything I noticed my gold balance said 0. I left the AH and opened my game. Upon coming back in game I saw my gold balance was still 0. How does this happen?

The gold reappreared after about 30 minutes but in my completed auctions as a failed transaction to buy the same amount of gold. Very strange bug.
Edited by Astealoth#1831 on 5/22/2012 2:22 PM PDT