I'm making some homebrew races for my future campaigns and have made one currently. This is the first time I've put a race here. My issue is that I have information on about my race that I've typed in that isn't showing up on the full details page? And I'm not sure how to fix that for this race and my future races.

Where did you type it? After you entered it, did you remember to re-save the entire race using the main [SAVE CHANGES] button under Basic Information?

I typed it all into the main Description portion of the race builder and I did hit the save changes. It's all there in the editor but its still not showing up in the full details page.

Look at the buttons above the description field for one with the following symbol:

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That will let you view the html for that field, do that and check it for errata code.