I was a software developer at a very large company a number of years ago. My team came across a bug ticket from the QA team in our bug tracker system that simply said,
No description of the problem, no build number, no steps to reproduce the issue. After going back and forth about a dozen times with the person who reported the issue, it turns out he was using a build that was several weeks old. We instructed him to upgrade to the latest build, then my development lead closed the ticket shortly thereafter.