This is an email I sent Shane early December 2008:
Shane,
Further to our discussion about messaging system non-delivery here is an example, of sorts. Email copy received but eBay messaging system copy not.
As at the time of sending, I have still not received a copy in the Messaging System.
I don't know if this is a valid situation for the issue at hand, but it seemed a good candidate. The file attachment is the source text of the email I received.
He thanked me for the info and was going to pass it on to the techies.
He also said that the problem was known and he was (at the time) engaged in sending out messages to try and track the problem down - so it was certainly not being swept under the carpet.
I have not heard anyhting from Shane since (not that I really expected to) and the problem still seems to be occurring.
From all reports, it is an intermittent and infrequent problem and those are the most infuriating to try and sort out - because you just never know when you need to be looking. Also, you may not be aware that a problem has occurred - because you are looking for something to NOT happen.