When viewing an animated `.gif`, sometimes some pixels fail to update
eg. here is a .gif
I recorded for a walkthrough:
here is a brief screencast of the .gif playing in Eye of GNOME:
I forget the technical term for this, but some parts of the image are not updated properly, so some parts of the current image are from a past part of the gif.
❯ eog --version
GNOME Image Viewer 44.3
Let me know if you need further information.