Hey @luxmedesigner,
The problem with Slider Revolution and Cornerstone on your French page stem from WPML.
You would need to report the issue to WPML support as this is not an issue with our theme as it only displays the slider in the front-end.
Alternatively, do not use the method and create a separate slider for each of the languages. I tested assigning non-WPML connected slider, the Featured Video slider and it works in your Frensh page.

- Regarding “No Content in Cornerstone”, you translated the page using WPML Translation Editor. That is highly likely the reason why the Cornerstone builder data was deleted but the Cornerstone shortcodes remain.


If you wish to use Cornerstone again, you will need to completely delete the French page.

Then, translate your English page using the translation flags in Cornerstone.

Alternatively, use V2 elements as those are not affected by WPML’s Translation Editor.
Thanks.