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TPSM84A21: Enable and input power looks good, but regulator is not turning on.

Part Number: TPSM84A21

Tool/software:

We have a system with the TPSM84A21MOJRpart.  We have the enable at 2.1V and 10V in.  The Rset value is 732 ohms which should give 1.2V on the output.  What we see is 0.618V on the output and the PG pin is low.  If we pull the output up to an external 1.2V with a 100 Ohm resistor, the PG goes high and the rail is at 1.2V, but as soon as the resistor is removed, the output drops again to 0.61V  Here are the voltages we see:

 

Any ideas on what might be wrong?