Top picture, short shoe. Its seperating. The lining is coming off. And looks like lead shoe on other side may be coming apart too. Whether its a result or cause, im not sure.
I can't tell if that is the case or not, but he brings up a good point. Unless the linings are glued AND riveted, if they get hot enough the glue can melt and the lining can slide out of position on the shoe.
