Question
Whenever i am trying to change the section/material property of the element, the program is giving the error:
[Error] It is not allowed to constitute a member with elements of different sections.
Answer
This error occurs when attempting to change the property of an element that has already been assigned as a member. The issue arises because a single member cannot be assigned more than one property.
To resolve this error, either delete the existing member assignment in the Design tab or change the property of the entire member instead.