Multiple image upload, resizes only once

[eluser]BrianDHall[/eluser]
Going back to the first code you posted that worked for everything except thumbnail, consider this:

$this->image_lib->clear()

The clear function resets all of the values used when processing an image. You will want to call this if you are processing images in a loop.

$this->image_lib->clear();

Put the clear() call at the top of your thumbnail function and give that a try. Any change?