Hello,
Thank you for reaching out to us.
We would like to clarify the difference between the Product Description Editor and the Single Product Page Layout Editor.
When you navigate to XStore Builders > Single Product Builder via Elementor > Edit Template, the product description in the tab is simply displayed as it is. You cannot edit it from this section because each product has a unique description, whereas the layout you are editing at that moment is shared across multiple products.
At this stage, the styling of the product description content may appear slightly inconsistent (as on your screenshot) —please disregard this. To achieve a well-formatted product description using Elementor, you need to edit it separately here https://prnt.sc/oytlWNCn3RVn or https://prnt.sc/qPZ2QSIMRViJ
By following this approach, you will achieve a visually appealing result on the frontend.
If you have any further questions, please feel free to reach out.
Warm Regards,
The 8Theme Team