In a way I had a little contribution to the creation of these errors, my laziness gets the better of me. As I primarily use photographic film I am constantly using scanners to get digital copies of the images for my social media and website.
With these scanners, when you insert a strip of 6 x 35mm stills it brings up thumbnails for which you choose from and with nearly every roll of film there is a small section of un-developed or developed strangely which I do not un-select for scanning. therefore I am always left with handfuls of these unusual, Rothko-esque images.