H6D-100c tethered capture fail

[Spike Mafford]

Does anyone have experience with tethering the H6D-100c to a Mac running the current (3.7.3 ver) Phocus?
I'm running OS 11.7.6 and the captures started showing up black.  Both in the thumbnail and the preview.  When the fff files are exported, they have black dropout square with no information in them.  Is this a video card/memory issue? 
I can see the files in Adobe Bridge and can open them in Photoshop just fine.