1997 W202 C230 - Right Turn Signal Busted?

Well I've got an electrical issue. The left turn signal works perfectly. The hazard lights work perfectly (including the right side front and rear flashing lights). Everything else electrical works normally. When I put use the turn signal stalk to turn on the right turn signal, the lights don't signal (flash/light up) and it makes a buzzing sound. Anyone know? Any help appreciated.

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Michael

1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230