Do you mean the viz renders for her, but when she scrolls down it is blank? I'd suggest having her try on your computer, an opening a case with Tableau Tech Support to take a look:
The viz renders just fine. Tableau is just unable to grab the full amount of text.
I found this article. https://kb.tableau.com/articles/issue/text-field-character-limitation
Our company is in the process of making changes to our databases.