Trade popup sometimes doesn't appear

On Scourge, during the last 2 hours at least, trades sent have been occationally failing to produce a popup, though the chat message of receiving the request does seem to reliably appear. Frequency uncertain but I've seen it the one time I traded and others are reporting the same. When I got this chat only request, I then sent my own request, a trade interface opened and we completed the trade, then I received the chat message that my trade request had expired. I don't know what my trading partner saw during this, it was rem.

I see you've been working on it, hope it doesn't take much more to get it robust.