Just done 9 auctions, I only got emails for 4 of them, but all auctions are running fine.

The ones I got an email for were

13147540
13147537
13147534
13147526

The ones I didn't get emails for are

13147542
13147547
13147552
13147555
13147562

I am not too concerned, but just though you should be aware this is happening in case it's the start of something bigger