Attempting an Alembic export of geometry without being assigned to at least the initialShadingGroup causes a fatal crash in at least Maya 2014 when exporting "FaceSets" is enabled. This case can be reproduced by creating a polygon primitive, opening the node editor, deleting the connection to the initialShadingGroup and attempting to do an Alembic Export with the default settings.
Attempting an Alembic export of geometry without being assigned to at least the initialShadingGroup causes a fatal crash in at least Maya 2014 when exporting "FaceSets" is enabled. This case can be reproduced by creating a polygon primitive, opening the node editor, deleting the connection to the initialShadingGroup and attempting to do an Alembic Export with the default settings.