In that case, I would appreciate if the developer (or someone who knows exactly what the problem is) can make a bug report upstream, instead of just saying “not my problem” and letting it slide.
It may take me less time than you, but it still takes time. My time is not unlimited, and I would rather spend what I have on other tasks that are more likely to produce a favorable outcome.
I don’t expect it, but I offer it as an option. If you’re unwilling or unable, this will need to wait for someone else to come along I’m afraid.