Thought this was posted here already, but it was as comments on a thread in the PHP programming subforum. Seems there is a bug, when clicking on "Go to solution" in threads where there has been set a "Best answer" doesn't work. It returns an error. Quoted from the user: This happend to me too, when I tried recreating it. Tried with all plugins turned off, Ghostery on pause and such, no difference.
Looks to me like the "Best Answer" was deleted for some reason, thread shows as solved but nobody has the best answer "blue glow" round their username.
Ah, that would... not really fix the bug now It's an explanation for WHY the bug happens, perhaps, but it's still horrible coding / UI. It should then (preferably) remove the best-answer alltogether from showing anywhere on the thread (and let the user post a best answer again, if s/he wants to), or at the very least prevent the "not found" message to pop up, with a popup telling that the chosen answer is no longer available, or something like that.