When I import text to create a lesson, the main play button above is greyed out and will not play the complete text.
I can only play word or phrases from within the text area…

Once again, am I doing something wrong with my import? Or does the text have to be set up in a certain manner?

Thanks againg!

When importing a lesson, you need to import both text and corresponding audio (mp3 file) in order to have the audio player available when studying a lesson.
Otherwise, you will only be able to listen to TTS auto-pronunciation for selected words/phrases.