Yes, those toasters can be fussy to use. I mostly toast rye or wheat bread I get from the Polish grocery store, or home baked wheat bread. With odd shaped slices the bread needs to cover the sensor or the toaster will shut off right away. Different breads also toast differently, photo shows a multi grain store baked bread and a home baked wheat bread, both toasted at the same time. The multi grain bread was older and stored in the refrigerator, so it was probably a bit dried out. They work well with toaster waffles. Any really odd shaped bread goes in the General Electric toaster oven.