When constraining in-place masses to levels in the project environment, you might be faced with a number of constraint errors depending on how (where) you apply them.
There are a few other quirks which also seem to imply buggy behavior, so instead of a long textual post, how about a video? It’s been long overdue to set up a YouTube Channel for this blog! Here is the embedded video:
Or you can view it in HD by clicking here.