Revert "add try/except when getting process owner"

This reverts commit 4e71d74ff13625c41d0e3b7ac9a9894aae1847e8.
Revert "Handle args that were previously parsed into lists, Fix #5031"

This reverts commit 773fda0fa1f9c6eb6d6f1e39945ea5ea67e0e52d.
All kwvals are parsed before reaching functions now

Fix test failures from #5031 773fda0fa1f9c6eb6d6f1e39945ea5ea67e0e52d