Hi, I had the same issue and stuggled with this for sometime. However, I figured it out and unlike Bappa06 Im prepared to take the time to give back the knowledge.
Basically, it is a setting in the product. Go in to edit your product, choose “Design - Unused” and then “Display Product Options In” - make sure this is set to ‘Product Info Coloumn’ and then reindex and clear cache. It should work!
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