File Header in ReSharper Not Applied

I've configured a file header in ReSharper options, and I've configured Cleanup (Ctrl + E + C) to include that header. Unfortunately, in both VS 2017 and 2019, what I get on cleanup isn't the file header I set. Cleanup does, indeed, insert a header, but it has none of the information (except the file name) that I specified, the hard-coded text, or the formatting. I've checked other tools that might be stepping in, SuperCharger and GhostDoc in particular, but I can't find the header source. 

I suspect this isn't a JetBrains problem, but rather something else getting in the way. Do you all have any notions of where I might look?

Thanks