Image Preview In Newthread And Editpost

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So, your problem is in the "actual" layout (in showthread or postbit template), not in the editpost template. I mean, even it is in editpost page, but the actual layout laid in postbit/showthread template. Because the preview post calls the postbit template, and your actual layout laid in that template, so, the image not updated when we try to change the existing image when editing the thread and hit the preview button.
Is it like that, Lee?