Hi,
Same issue for me.
When I try to stretch the image using corners handlers but the image is not resized.
I noticed that the width and height attributes in the img tag are not taken into account when the post is rendered.
The only way I found to get the image resized, is to add css style attribute in the img tag in the html view, example: style=”width:100px; height:70px”, but this solution is not friendly.