First property shows up with layer value menu when selecting a new object
On Mac OS X the first property of any object(s) shows up as the layer drop down menu. This occurs when a pin was selected before selecting the current object.
for instance this occurs on the following transitions (this works for single or multiple selected objects): pin to pin pin to text * pin to part
This can be worked around by selecting a different object or selecting no objects before selecting the target object.