Ah yes, Chad's Tool.

The OSM community has had a lot of run-ins with people using Chad's Tool and wanting to break how OSM does mapping. Chad's Tool has a bug in that it doesn't support relations. There is a proposed fix that must be at least 6 months old now that looks like it might fix the problem, but the author hasn't built a new version with that fix yet. There is a pull request on github requesting the fix being incorporated. I've been encouraging people to add their voice to that fix so that it can get built as soon as possible.
