I have been trying to figure this out for a while. Im using the SEO that is included in ravennuke 2.40.01 but I try and use the override box, but its not actually overriding the meta tags, its not even overrideing the site slogan or title.. I use the override then I view source and I still see;

Code: meta name="KEYWORDS" content="RavenNuke, news, technology, headlines, nuke, phpnuke, php-nuke, CMS, content management system"

Would using the stand alone SEO work better?

I cant even find a file where those base keywords are generated from.

My SEO that I'm trying to insert:

Title: Learn2sail Home Page

Description: Learn how to sail

Keywords: learn to sail, sailing instruction, sailing courses, sail, sailing, sailing charters, cya courses, cya, navigation, offshore sailing, inland sailing, inland, offshore, ontario, canada, usa

Did you upgrade to this version? Sounds like the override tables don't exist. Did you try error logging or check your site's error log?

I wouldn't recommend using the old nukeSEO Beta (except for the Sitemap module). nukeSEO DH that is integrated into RN is MUCH better...
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This is a fresh install of Ravennuke 2.40.01

Sounds like it's missing the nukeSEO DH tables... Did you verify the tables?

what are the table names?

Also is there a way to manually override the tables temporarily?

I believe they are (I'm using 2.4.0 not 2.4.1 but they should be the same);
nuke_seo_config
nuke_seo_dh
nuke_seo_dh_master
nuke_seo_disabled_modules