Ghopper/mac solid difference not working.Backup-bake, boolean diff works

My pursuit of grasshopper losses its charm easily. I followed a ‘waffling’ tutorial to an unfruitful ending again. The last step of Solid Diff did not work regardless of the many attempted options. It did work in rhino after backing up a step to bake and BDifference. ???
It didn t work on pc Rhino6 either.
Thanks r.

EQ-2.3dm (4.4 MB) (30.8 KB)

Hi Randy,

The solids difference is looking for Closed Breps to subtract, you had a list of Untrimmed Surfaces