Strange thing noticed, when editing more than one image on a theme (the sample one send the list of images at bottom), when one for example wants to swap the images around 3 with 5 and 5 with 2nd , then editing the second or third images result in the previous on edited to swap back to a other image. Still trying to figure out why, but very strange.
just play with the sample edit one after the other and at the 2nd or third edit you will start noticing the previous onces swapping to something else.
it is not a cached problem as I refreshed over and over again and the images stayed there, thus it is the images that it swapped to.
Okay found the problem, not really container id related, more only one image gets stored in the image array against the layout at a time, will get this corrected to have multiple entries, then it will all work fine. also removed some coding regarding the container images as there is always only 1 images saved at a time against a container id as the container is img that can only have 1 src.
K, fixed enter for this.