Bugs in content types

HI there, it seems to be a bug in Course Presentation. It seems to be impossible to revert Activate Active Surface Mode if applied once. Please do let me know if i am wrong

Hello Everyone,

We have the following problem. 

As soon as the WPML plugin is activated, no nee content can be added unfortunately. When one goes on add new content on the drop down menu it is empty. 

Does anyone know anything about this problem? 

Many thanks, 

Deniz

The audio of the dialog cards not working on my smartphone.

If it works on my PC but does not work on my smartphone, I am using a plugin for wordpress