https://github.com/su2code/SU2/blob/60270690cd749bd190e16b4c34cf724c42edbeb1/SU2_CFD/src/numerics/flow/convection/hllc.cpp#L543C3-L543C3

As per the https://www.sciencedirect.com/science/article/pii/S0021999197957934 (original paper), multiplying the Jacobian with \kappa = 0.5 is not right. It is leading to non-convergence.

Further, dpStar_dU[iVar] calculations need to be relooked. As per the original paper, density should be at "j" when it is being used at "i". Though I have not seen a major difference, but currently testing the same more for strong shock cases.