I tried what you suggested but diidn’t resolve the problem.
Now I made this test:
– I create a new page
– Insert only a text with title element
– Save the page and exit from TDcomposer
– I open the preview in wordpress and the page has lost formatting
– I re open TDcomposer and it show me “the current content page hasn’t been created by TagDiv Composer!”

Maybe a problem of theme’s templates setting?

???

I made some tests:

1) every box “text with title” in the pages of my site lost formatting with activation of tagdiv visual composer
2) If I create a new page with tagdiv composer and I insert a box “text with title” I saw the box:
– correctly formatted in the preview of tagdiv composer
– without formatting in the preview of wordpress
– without formatting in the online published page
3) If I deactivate the tagdiv composer in the plugins section, the boxes “Text with title” in all pages (old and new) has shown with correct formatting
4) clear cache pages doesn’t recolve the problem

Thanks for your support

Sorry, I don’t understand. I create the page 5 month ago and the page has not been modified. I only upgraded visual composer at the last version, and the page lost the formatting, but the problem is only in the box “Text with title”. How can I resolve?