We're using moodle 3.10 in 2 languages, English & Persian/Farsi. We've just started using the embedded question as it's a practical tool to test our students attentiveness. We want to put questions in a book module, the category of the questions & id numbers are embeddable & test. The problem is after putting a question in the editor & saving the page, this white rectangle shows up instead of the question, as you can see in the picture. Furthermore, the question is showing in the progress report as (show only), but still it's not on the book page. Can you please help us solve this issue..?