I replaced a broken shimano BB-UN26 bottom bracket yesterday. After only a 25k ride the crankset has some play and has started to wiggle a bit. It looks as though the bottom bracket is moving with the crankset.
Last time I replaced the BB it lasted 8 months. Crankset was replaced at the same time. Is it a defective BB, did I do something wrong, or do I have a bigger problem?