Well, this happened with me too 🙂 actually this is because Udemy has updated the policy I guess, now description must be more than 200 words, well, previously it was approved, it will be as it is, but if you are editing it again then you have to increase it to at least 200 words, go for it, it is better for your own course landing page, the more the text the better will be the SEO
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