Haven't the foggiest. It's stymied me completely.
That said, when we upgrade to the new EN World @darjr is trying to port GsG over (hopefully it can be done or I'll cry). So he might discover something in the code during the process. Or not. Hopefully!
Because we don't know the answer! I promise we're not keeping it secret just to annoy you!
I don't feel anyone is keeping it secret or trying to annoy me. I'm sure there are countless scores of possible reasons why nobody has responded to this in such a while. I'm just curious as to what the reason(s) is/are, and whether or not anyone has been working on this problem?
Now if nobody is working on it, or if all endeavors to fix this have just been given up, I would find that annoying.