Over Cooked Sausage
People think that slow cookers are easy, so easy in fact that they don’t require you to come back and check up on things for multiple hours. While this may be true for an hour or two, you should absolutely check in on how things are going every forty minutes or so to avoid this from happening.
What you’re looking at here are sausages that have burst open due to being overcooked and unattended. While you may still be able to eat them, they would taste awful and look just as horrendous on your plate.