While performing flutter Analysis on wing of the aircraft in Simcenter 3D 2312 version, in Solution Monitor it displays "System Fatal Message, Repeated Singular Matrix - Probably ILL-POSED problem". There is no issue with mesh and boundary conditions as 0 errors were found in Analysis monitor, So what could be cause of this error? I tried reducing the degrees of freedom as well but the same error keeps appearing. Please find the attached image for detailed error.
