Component and Surface schedules criteria will not filter building materials based on the building materials classification. Interestingly the classification choice ("has value" & "has no value") will filter to an all or nothing.
If you want to test:
Create a Component Schedule
Element Type is All Types
ARCHICAD Classification is ....
In Fields:
ARCHICAD Classification .....
BM Name
Model something that should work
and give it a go.
Gary Ford
Self Employed - Modeling, Estimating, Construction
Archicad 12-26
AMD Ryzen 9 5900X 12-Core Processor
3701 Mhz, 12 Core(s), 24 Logical Processor(s)
(RAM) 128 GB
NVIDIA RTX A2000