Hello Mack,
Thank you for your question about the 'unknown error' bids that we placed. We investigated to see what we encountered when we placed the snipes.
We are 100% transparent here, so here's the exact reason. It turns out that another user scheduled a gazillion auctions to go off right in the same span of 2-3 seconds. We had our system set up to interpret this as a security breach, so it did not execute these two items.
As a result of your post, we are going to increase the threshold of the number of auctions that can be set for a given second. We regret the inconvenience, but have set it so that it won't occur again.
Thank you for taking the time to write in. Please let us know if you have any other questions; we are happy to help.
bidslammer