Convergence isn't great so it's likely the chemistry isn't well resolved. Also please plot the plane contour without node values as asked - I need to get an idea about the mesh.
Finally, we're running 2023R1 now, which is approximately R24.1 in old versioning. R17 is ancient, and updating will give you much faster model runs and significantly improved solver tools.
You are navigating away from the AIS Discovery experience