Yes, I'm aware there are other threads on the topic, but I don't see any blue replies, so I can only assume Blizzard is unaware of the problem, hence a new thread.

Issue: Purchased item on AH, did not appear in completed tab. Checked back a few hours later, item appeared, click send to stash, item did not disappear from list, did not get confirmation. Also sent older items I have previously purchased to stash, those went through straight away.

Checked back a few hours after, purchased items log have cleared, 10 items posted on Auction house missing, nothing in the completed tab.

This all happened within the last 12 hours.