The included repository implements a tuned range-separated DFT workflow. The baseline calculation runs, and the workflow reports a tuned range-separation parameter. However, the final calculation does not show the kind of change one would expect after a successful tuning step.
Inspect the source code and public reproduction workflow, and repair the implementation so that the reported tuning step has a real effect on the final scientific calculation. Do not hard-code a single molecule, a single parameter value, or a fixed expected output.
The task is about diagnosing why the reproduced tuned workflow still behaves too much like its untuned baseline.