Preheat a 6-quart air fryer to 380°F for 3 minutes. Pat wings dry and toss with rice flour, cornstarch, salt and garlic powder; shake off loose powder.
Dab wings with oil until flour patches are moistened. Arrange half in one layer and cook for 12 minutes, turn and cook for 11 to 14 minutes more until crisp and at least 165°F.
Transfer to a rack and repeat with remaining wings. Warm hot sauce, butter and vinegar in a small saucepan until the butter melts.
Toss cooked wings with a thin coating of warm sauce and return to the fryer in two batches for 1 minute each at 380°F.
Serve immediately as 4 appetizer portions while the light crust still has texture.