Hello... I realized today that snipes aren't going through. I tested manually and monitored a couple of auctions today. They both showed-up on the Current BidSlammer snipes. But then the auction ended without a bid attempt. The previous snipes then disappear. They're no longer listed anywhere.

Hello Tony,
Thank you for your question. You added item 156094185395 minute to closing time, and 186325211389 only about 20 seconds prior.
Every snipe needs at least minutes to register, so technically, the problem here is that the system was supposed to prevent this situation by giving an error. I'll make sure this is addressed in the next revision.
Rest assured if you give it two full minutes then it will definitely go through.
I hope this explains to your satisfaction. I'm happy to answer any other questions.