indoor_study-Get surface from HBZones

[dradair]

Butterfly sample file - getting Honeybee error.
Testing the example file "indoor_study.dyn" in Revit 2019. I get an error on the Custon Node 'Get surfaces from HBZones":
Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed.
Traceback (most recent call last):
File "", line 25, in
AttributeError: 'HBSurface' object has no attribute 'hasChildSurfaces'

Looking at they Python code for this, it would appear that zone data is not passed into the note, but Rooms to HBZones has no errors. Digging around I found:
honeybee-dynamo/plugin/samplefiles/08_three_phase_I_gridbased.dyn
But the python in the code matches the <script> at line 293.
The example file video shows no errors/issues; leaving me really confused as to source of error. There is a comment in video that there may be a need to build all geometry/surfaces within Dynamo; but this is overload for all but simplest geometry.

So, what is the solution to address? Is there no means to get surfaces from Revit geometry?

Edit/update: Found an old, grainy image before 'Get surfaces from HBZones' was a working node. I rebuilt the example file, per the attached. Hoping this helps others in their journy if theres not a direct solution. (which only makes Rhino/GH look better...)