When promoting a list element using the ListRenamer in FME 2018.0, the cog remains red even though none of the fields within the transformer is red.
When hovering over the red cog, it says "Parameter 'Component to Rename' must have a value". But as I am promoting rather than renaming, this doesn't make sense.
I never had a problem with this in v2017, so I almost suspect it is a bug? But I'm happy to be shown otherwise!