Most of the users are facing this issue where the Toolset conditionals have suddently stopped working in Divi Builder. There is a technical reason behind it.
So this is how conditionals were used earlier by most of you guys.
OLDER WAY OF USING WPV TOOLSET CONDITIONALS
[wpv-conditional if="( $(wpcf-3d-tour-toolset) ne '' )"]View 3D walkthrough[/wpv-conditional]
LATEST WAY OF USING WPV TOOLSET CONDITIONALS
[wpv-conditional if="( $(wpcf-3d-tour-toolset).item($current_page) ne '' )"] View 3D walkthrough[/wpv-conditional]
The reason why Divi is not supporting the old way is because they are not declaring the current post variable. So in order to fix it, we need this minor alteration to the conditionals.
I hope this is helpful for you. If you need any help in Toolset or WordPress Web Development, you can contact me here.