Unicode doesn't render properly.  Come back as  � character.  When running a python script that queries the environment, the encoding comes back as encoding='cp1252'.

I think I'm explicitly saying to use UTF-8  in the pipeline also I think PowerShell Core is using UTF-8 by default. 

pwsh(encoding: 'UTF-8',
label: 'runscript',
script: '''''')

master and nodes have are using the -Dfile.encoding=UTF-8 JAVA Tool Options.