Resolved in: 4.4.11
Overview of the issue
Cornerstone provides you with two types of elements: classic shortcodes and V2 elements. When you mix those on a page created with Cornerstone and translate the page, the translation of the classic shortcodes is not loaded on the front-end.
For example, when you add Classic Text and Text elements on a page and translate it using WPML’s translation editor, the translation of the Classic Text is not loaded on the front-end.
Our development team is working on a fix for this issue. In the meantime, if you have a page with mixed elements you can use Cornerstone’s built-in language switcher to translate the page manually as explained in Theme.co’s documentation.