This is a question that I found in the delete queue. I noticed that it had votes to re-open on it, and I was able to cast a reopen vote myself. This seems unusual to me, as my normal reopen queue is empty and I don't believe I have ever expressed an opinion on this post. (Since I was able to vote on it, I suppose the system would agree with me.)
Going through the delete list, this seems to be a regular thing, so there is nothing remarkable about this specific post. So my question is: is there some bug that keeps some reopen votes from making it to the reopen queue or is there some set of circumstances where a reopen vote would not be distributed through the queue?