On 7/25/07, Timwi <timwi(a)gmx.net> wrote: And if the bug is not reproducible by other people, that's very relevant, because it means it'll be a pain to pin down and fix. That's why many bug-tracking systems have some way of people indicating that the bug appears for them too, like Mozilla's UNCONFIRMED or PHP's "Have you experienced this issue?". That's also why, if we can't reproduce a bug that's submitted on our tracker, we usually close it as WORKSFORME. In this case, it's been known for some time that thumbnails regularly are not generated or are incorrectly generated: see, e.g., http://bugzilla.wikimedia.org/show_bug.cgi?id=6316 . I'm not sure if anyone's tried to dig up what the problem is and/or fix it, although I recall Brion having fiddled with thumbnail generation a bunch in the past to fix various things.