A while ago I already wrote about the dangers of tiny buildings in autogen. The problem with those tiny buildings is that they will prevent other autogen from showing correctly in Annotator as well. Since some users reported such trouble recently, I have decided to automatically filter out buildings that are smaller than 1 meter in length or width now. So scenProc will automatically drop such buildings from now on.
I would also like to remind everybody that it is best to exclude your buildings in the SPLITGRID step. Don’t let them be sliced into small pieces, but only sort them into the right cell. This should prevent many of the small buildings appearing in the first place.