Hi There,
Thanks for writing in! So your entry content (page content) disappear on mobile. Though I’m not seeing any hide base classes on the section.
Would you mind doing a testing for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
If this does not work, please provide us login credentials in private reply so we can take a closer look.
Cheers!