LM5066I: LM5066I Over Current Fault happening too low and won't let me raise it

I'm using the LM5066I for protection with UV at 24V, OV at 40V, and OC at 20A.  I've got the circuit working on a dev kit, LM5066EVK/NOPB, having switched out parts to my FET and an LM5066I from my lot.  When I go to test OC on my own board I get an OC fault at 15A almost immediately, at 14A-14.5A with in a couple seconds taking less time as I up the current, and no fault at 13A.  Vsense never goes above 19mV, V(Sense pin to Out pin) is around 40mV-45mV with and without heatsinking.  Switching the CL pin high or low doesn't effect it.  I've tried Rpwr at values from 5K to 20K ohms, Ctimer at 220uF, 1uFs on Vdd and Vref, 0 to 5ohms on the gate to the pass-through FET, Rsense at 1.5mohms with a 33.2 and 5.1ohm network for a 1.3mohm equivalent.  I wired the AGND connections (Rpwr, Ctimer, etc) during testing without any change.  I'm out of things to try.  Please help.