Yeah, I think it’s kind of both a bug, a least in the “unexpected results” sense, and missing feature(s). Since there are definitely some additional features that could be improved here too (not only removing from Unknown, but also adding a new icon), I’m going to close this report to focus the issue in one place: https://forum.inaturalist.org/t/create-iconic-taxa-for-bacteria-archaea-and-viruses/1464