Error - Image turns to Black when mirroring then resizing

[Jason - Polydiam Industries Limited]

Hi,

 

I've got an error that keeps occurring with my program where a loaded image
turns completely black.

 

I'm using an image area to dynamically load in images.

 

On a button I use the Mirror function on the image.

 

     flip image "Target Image" horizontal

     choose browse tool

 

then if I use a button to resize the image

 

     set the height of image "Target Image" to 400

 

the image area turns completely black and I don't know why.

 

Any help would be greatly appreciated.

 

Regards

Jason