This has happened twice in two weeks. Muffin was running around the house and jumped off the sofa and when she landed she yelped and would not put any weight on her left front paw. I took her to the vet and as the vet was feeling aroung the elbow, it made a faint "pop" sound. She put her down and Muffin was fine. Today, Muffin was running in the front yard and she stopped and again held up her paw and would put no weight on it. I was feeling around the elbow area and I heard a faint "pop" sound. She was fine when I put her down. Has anyone experienced this with their Corgi?