Hi all, I'm new to IntelliCAD but old to Acad.

(vlax-invoke ven 'GetDynamicBlockProperties) works in acad's vlisp, but throws the subject error in Intellicad.

Is there a workaround?

Hi,
I'm not sure, but it seems IntelliCAD doesn't fully support Dynamic Blocks in Lisp functions.
Try using the .NET API instead.