Uploading Revit Assemblies is still a bit cumbersome. The only option is to choose a folder, and of course all our RVTs reside in folders along with their respective backup folders. So A360 finds all the files within the backup folders and identifies them as part of the assembly. There are ways to work around this, but nothing easy. One possible solution would be to allow users to choose files rather than being forced to choose a folder first.