If the machine has not seen much use, it is possible that the lipseal has not yet bedded fully to the seal diameter on the shaft. It may be that the grease in the seal has hardened, and when the grease warms up with extended use, it will soften and allow the seal to bed, and function as intended.
I should live with it. Either the seal will bed in, or the excess grease will work its way out.. Only worry of it continues to leak.
Howard