Reply To: Redirect all old HTML pages to new website pages

Ok great.  Now what I need to know is are you using the standard WordPress rewrite code for GWIOD site types in your site root .htaccess file?

It will look either exactly the same or very similar to this code below (make sure your RewriteBase is / and not /rcms/:

Reference:  https://codex.wordpress.org/Giving_WordPress_Its_Own_Directory

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