Hello All
I have searched high and low for a solution to my issue. It seems a lot of older versions of Magento were experiencing this issue but it was mainly down to a flash issue. I have gone through every possible scenario to no avail.
Basically, I am trying to remove old images and replace them with a new one.
You will notice even when I go to the product it provides the error message straight away (screenshot below) NOTE the buttons are still available and clickable to upload so it isn't a flash issue.

I can still proceed to select the image and upload:

Lastly, The image I want to use even appears.

The radio buttons I can use to and I have also chosen to remove the old images. However, The message stated in the Subject is still present and when I hit save it does nothing and will not allow me to change the pictures....
Please could anyone help me resolve this issue.