After the error analysis made with mrb ide ver 5.551, the project that does not give any error in the reports gives an error when analysis is performed in ide ver 6, I wonder what is the reason???
Must see your project. However, the checks made in version 6 probably cause this. A few of these added extra controls; Deflection control Minimum dimension controls Crack control Crack length control in beam supports TDY 3.4.3.1 If you add your project, it will be easier to understand what these differences are.