DRV8301: No load, Vds overcurrent flag keeps triggering, PULLING HAIR OUT :)

Part Number:DRV8301

This happens across two identical boards.  I start PWM.  All 3 channels run properly for about 1 second.  Then I get the FAULT and FETHC_OC flags, and the C phase gate outputs goes hi-z.  Both boards do the same thing.  

This is a re-layout (Rev 2) of an identical design, except I changed the FETs and did some rearranging of the parts on the board.  Same exact code on Rev 1 runs fine.  

I trap the fault in the debugger then read the SPI registers, which then confirm what I stated above.

Things I've tried:

1. Setting OCP_Mode to 2 or 3 - oddly, the channel still turns off - shoudn't this circumvent the protection mechanisms altogether?
2. Reducing gate drive current - no effect (I also tried higher gate resistance (10 ohm) with no change
3. Set OC_ADJ_SET to 31 (2.4v).  No effect.
4. I've looked at all supplies around the driver - they look cleaner than on the older board.  
5. I've monitored Vds vs gate signal and it looks proper I think.  

I have scope traces galore - can post.  Thanks in advance for any help.  I'm ready to jump out the window right now :(

Here's the parts of the schematic that matter: