[closed] Look for non-existent audio

Courses that contain partial audio seem to look for audio even when the words do not contain audio.

For example:

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This is not just a display problem; it seems to be trying to play it back and failing.

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Fixed, ty! 🙂

I had tested this with null values but apparently not with empty strings '-_-

Thank you!

Np! ^_^ Thanks for letting me know! 🙂