Redirecting my old urls through .htaccess isn't working

Question

I'm trying to alter my htaccess file to redirect, but it's not working and I'm not sure why. The old urls are now giving 404s if that's important.

Old structure: https://www.example.com/category/tag/id/slug
New structure: https://www.example.com/article/slug

I want to capture the slug and put it in the new structure. My htaccess file looks like this:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

RewriteCond %{HTTPS} off 
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteRule ^/.*/.*/.*/(.*)$ /article/%1 [R=301,NC,L]

</IfModule>

I was thinking I had the last RewriteRule correct there, but perhaps I'm missing something?

Answer 1

Solved.

Correct syntax was:

RewriteRule ^.*/.*/.*/(.*) /article/$1 [R=301,NC,L]