We have dozens of FME 2020 workspaces that use this capability that are now failing in FME 2021 because the parameter is not available to the Python Caller.
Solved
In FME Desktop 2021, how do I use a password user parameter in a Python Caller.
Best answer by rfslivajr
I'm going to answer my own question, in that I was able to use a ParameterFetcher transformer to convert the password to an attribute and then have the PythonCaller use the attribute value instead.
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