Open
Overview of the issue
When WPML is active, you aren’t able to preview LearnDash LMS certificates in the editor’s Visual tab.
Workaround
We’re working on a fix for this issue. In the meantime, you can follow this workaround:
add_filter( 'tiny_mce_before_init', array( $this, 'add_tiny_mce_change_detection' ), 999, 1 );