Thanks for the solution, Ray!
Posting the solution for anyone else that may have encountered it.
At the beginning of the year, my server updated all its auto SSL certs. I have a redirect on my cPanel for all sites to push to https.
Evidently, DW6 code may be too old for newer SSL certs.
Ray changed the htaccess code to include the line that bypasses the auto redirect to mmServerScripts files.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{SERVER_PORT} !^443$
RewriteCond %{REQUEST_URI} !/_mmServerScripts/.*
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
Hope that helps someone else!
Thanks again Ray!
