Cannot call geometry properties in object variables in Rhino Python

Scripting
1

Hi everyone,

I have created some class objects with some geometries property insides
However, when I pass those objects to other python components, I found that the geometries cannot be called (but other properties like numbers are fine)

The following is the error message:
Runtime error (NullReferenceException): Object reference not set to an instance of an object.

Traceback (most recent call last):
SystemError: Object reference not set to an instance of an object.