Unpleasant smell

Hi, I’m new to the dreame team but I’m absolutely in love with it! However, when I use the hot water vac mop setting, it blows out an unpleasant smell. I don’t know what it could be. I clean the dirty tank after every use. But I’m at a loss as to what else it could be?
Also, is there another cleaning solution we can use? I love this one but with the smell coming from it, I’d rather have a cleaner scent leftover