Two errors were found. Using a static `figsize` definition caused a projection mismatch by creating a canvas independent of the data matrix; a flexible structure should have been built from the start.
I obtained the first render by trying to tolerate the error in the `namelist.wps` and `namelist.input` files, then obtained the second render by applying the Python development method described in the paragraph above. While a simple problem, it's an important point for beginners.
The root cause of the error was the implementation of a static `figsize` in the Python code; this is suitable for the third graph defined in the 12.10 format. However, the improvement required editing the input and wps files and implementing a flexible structure.