On Transifex Live, some translations are not appearing on the website even after translating and publishing it

We are using Live, and some translations are not appearing on the website even after translating and publishing it. Why?

It might be 2 different issues:
Case #1:
Ensure that that correct API key has been added to your HTML code

Case #2:
When you publish translations, you can select the check box “I want to publish only reviewed translations”. If those translations are left as translated but unreviewed, and this option is enabled, they will not be served on your website.