Solution:
Redirect
or RewriteRule
doesn’t match query string. You need RewriteCond
for that also you must keep that rule before other WP rules.
RewriteEngine On
RewriteBase /
RewriteCond %{QUERY_STRING} (?:^|&)id=herhaalrecept_aanvragen-5(&|$) [NC]
RewriteRule ^index\.asp$ https://www.example.nl/aanmelden-nieuwe-patienten/? [L,R=301,NC]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php? [L]