Check if the correct section, which references the steel material, is assigned to the parts representing the steel bars. Use the "Section Assignment" tool in the Property module to review and modify assignments.Verify that the element types used for the steel bars are compatible with the assigned section properties. For example, beam elements require beam sections, while solid elements require solid sections.

Check whether the reinforcement bars have been assigned as Beam elements or Truss elements. If they are Beam elements, a warning will appear because using Beam elements in an embedded region within any host is not recommended; you should use Truss elements in such cases. If you are using Beam elements, ensure that an orientation is assigned to the bars. Failing to assign an orientation may cause this error. I don’t know much about your specific problem, but feel free to ask me on WhatsApp; https://wa.me/+923440907874, and I will guide you further.

I am pleased to inform you that I have resolved the issue. Upon reviewing the model, I found that the steel element type in the section box was set to Truss, while the steel element type in meshing box was defined as a Beam element. Once this inconsistency was corrected, the problem was resolved. Thank you once again for your valuable insights.