Generator fill on expanding the images is not working in fact it is just making the image extremely tiny

Hi, thanks for reaching out!

Please check the Width and Height entered for the resolution at the top. Looking at the video, it seems you have also 16px X 9px entered there, which is a very small size and would give you the result you're seeing after you commit to the changes. Try changing the ratio to 1600px X 900px or to maintain the aspect ratio, select the 16:9 aspect ratio from the preset dropdown at the top.

Hope this helps!
^Nik