ContentArea will not show 100% of the time when users access the external link

[michael-brown-pacden]

I have an Additional Content field declared within the Block. Sometimes, even with content, it gets rendered as null or empty.

Here is the field declaration:
[Display(Description = "An additional content area at the bottom of the article page to support more content blocks if desired or needed.")] public virtual ContentArea AdditionalContent { get; set; }

[barteksekula]

Hard to say, if you are still interested then I would need a bit more data from you. First of all is it netcore or net framework, versions of all cms, cms core, tinymce etc.
And most important thing is how does you view look like. The model property itself public virtual ContentArea AdditionalContent { get; set; } is not useful