Also relevant question - any ideas how to start debugging this? I'm not very familiar with debugging in kedro This https://docs.kedro.org/en/stable/development/debugging.html is not very helpful since the bug does not occur in pipeline or in node, but in config loading.

PyCharm: https://docs.kedro.org/en/stable/development/set_up_pycharm.html VSCode: https://docs.kedro.org/en/stable/development/set_up_vscode.html Debugging the Kedro pipeline is the same as debugging any Python program, you can use the debugger built-in with most of the IDE. The links above help you to setup the debugger properly.