Describe the bug
When running the compressible SST case located in TestCases/wallFunctions/FlatPlate/compressible_SST, the output results are clearly incorrect. Additionally, the simulation crashes with the error shown in the attached screenshot.

Warning: y+ < 5 in 1 points, for which the wall model is not active.

I suspect the error may be triggered by a node shared between the symmetry boundary and the wall boundary. However, even before the crash, the contour results (e.g., velocity, temperature, or turbulence fields) are visibly unphysical, suggesting that the entire wall function module may contain additional bugs beyond this boundary issue.

To Reproduce

Navigate to: TestCases/wallFunctions/FlatPlate/compressible_SST
Run: SU2_CFD config.cfg
Observe:

Program terminates with the error shown in the screenshot
Prior to crash, inspect solution output — results deviate significantly from expected flat plate behavior

Expected behavior

The case should complete without errors
Skin friction, heat transfer, and flow profiles should align with compressible turbulent flat plate theory (e.g., Nichols & Nelson 2004, or standard log-law validation)

Thank You