[HOWMANY]

Have a better dealer preflop.

This situation is so retarded/never should have happened I honestly have no idea what should be done. Pretty much anything I can think of is going to leave someone at least a little unhappy here. Starting the hand over from MP's pfr seems a bit absurd considering how much action has taken place already. But if that isn't done then the people that didn't put in enough chips can now angle their way into a good spot by having seen the flop cheaply and then choosing to put in the extra chips for the preflop raise. Killing the hands of those that didn't put in enough will leave them unhappy too.