On disney.com and some other websites, image assets are unloaded and not rendered again after they are scrolled out of view and into view again. A similar effect can be observed https://www.apple.com/iphone-14/ (press midnight colour then yellow colour). Can be observed on all versions of Epiphany/ WebKitGTK.
Moved to bug #271379
*** This bug has been marked as a duplicate of bug 271379 ***