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.
Is it core magento or you did any customization. Which plugin you installed in magento site?