Often (but not always), when you create a new Pointer card (at least in the context of multi-edit), when you click on "Add another" you get a 500 error.
Occasionally this happens on existing Pointer cards as well.
No clear pattern yet as to when this happens.
I think Lew and I might have come across this and fixed it a couple of weeks ago. John, if it passes can you tag it 1.0?