Charlotte’s Jeremy Lamb sinks game-winner with 0.3 seconds left.
Detroit drops fourth in a row to fall to 13-11.
Butler scored 38 points to help Philadelphia overcome 15-point third quarter deficit.
Bledsoe matches season high of 27 points for MIlwaukee.
Oklahoma City has won 15 of its past 18 games.
Blake Griffin scored 26 points and Andre Drummond added a double-double for Detroit.
Detroit wins fourth straight, hosts Golden State Saturday.