Hi legends,
A layer I am trying to use has subtypes where some fields have different defined domain lists for the field. I have been trying to add a field to my table through Insights and wanting to use the value in the linked subtype fields for some calculations but it seems like these linked subtype fields are unable to be used for calculations.

Any layer circled in green above that is linked to the red subtype can't be used for calculations.
Anybody know how this is possible?