Leave the front open on front loaders always but also the trick I learned years ago that has worked for me is to buy Borax and throw a bit into the drum with every load (your clothes will come cleaner and you’ll use less detergent as well) and it will eliminate the smell and it will never come back. Bonus it will soften your water. Also not related but powdered detergent is great, liquid you’re just paying for added water and a great big plastic container and sake goes for pods.