I have been getting random oil stains on my family’s clothing off and on. It doesn’t seem dirty until it comes out of the washing machine, and at first I thought someone had left chapstick in their pocket or something, but I check and it still happens. The stains are small and circular, and they come out with spray and wash or stain stick. I just don’t know if it could be a problem with the washer, and if so, is this something easily fixed?