Trouble with Cast

Twice, after Grace was casted and waiting to be leveled out for her boot, she had pain over the front of her ankle. Both times the cast had bent in at that point - once someone's finger had been a mold for the fiberglass there. Instead of removing the cast and starting over, they cut a horizontal line across the cast at that point. This, however, wasnt enough. So an intersecting vertical line was cut. Thus they avoided having to recast her.