My maggie is doing this strange thing, and maybe someone could help. When I was practicing pedal-ups I missed a bit low and my wheel slipped out. I then look and my pad is angled towards my rim grinding against it when I ride along. I then loosen the bolts and re-adjust it so that the pad is straight again(which worked well. But I did some more pedal-ups and it happend again and it contimues to happen over and over. Is something stripped or anything, I don't know it seems as though the mounts are just not keeping it in place very well. Thanks for any help it would be much appreciated.