I've been trying to find a simple parametric wall louver. At RevitCity I found a couple, but they both seem to have the same problem (see attached). The louvers themselves don't fit the frame the way they should. Is this due to a change in Revit 9 when using one created in an earlier version? If I need to modify it, can someone point me to a good tutorial or info on modifying the family so that it works? Or maybe someone can post one that works? Thanks!