I just went to do a run through against snarby, and it was going fine, but after a few hits on the bell it stopped working. He would not change so that I could damage him. I thought that he had been fixed so that it would work? I ended up just leaving the battle after he killed me.
EDIT: The bell worked about 4 times, then did not work for 6 or so, so I gave up after that.
This also may be just me, since other people I have talked to had no problems at all.
EDIT2: ran through again, no problems this time. Musta been lag or something I guess.