I am trying to create a 301 redirect on my WordPress site because an author's name has recently changed. Other redirects are working, but not the ones below.
Redirect 301 /author/old%20author /author/new_auther/
Redirect 301 /author/old%20author/ /author/new_auther/
Is it anything to do with the '%' characters and is there any way I can work around this without having to do it via PHP?