I loved my RM2 but the pencil broke and without a warranty, it felt hard pressed to by another one. I replaced tips regularly, but the "tip-holding" piece shift

I loved my RM2 but the pencil broke and without a warranty, it felt hard pressed to by another one. I replaced tips regularly, but the "tip-holding" piece shifted so it couldn't be reliably used any more. I wonder if any other folks hit this or if I just had a one-offf bad experience?