Grosbeak Chunky Sole Loafer (Women)

Truly a great shoe price wise, it has the look I’ve wanted, the sole, in sole, width, comfort. But it is a tad bit longer so my heel does slip out when I walk but a size down would be too small. The right one does make a sound of the buckle interacting with the shoe everytime I walk. I might try to add padding to fill the shoe a bit and see if that solves the gap