Monitor the specific gravity. The gravity should be dropping each day. If it is then there is nothing to worry about. If the gravity of one of the fermenting containers is not dropping then you may not have collected enough yeast when you transferred the wine (it's wine the moment you added the yeast). If it seems to have stalled because of insufficient yeast simply add another pack of yeast to the stuck fermenter: this is not the same as a normally stalled fermentation so you can simply add more yeast but if the gravity is dropping then you have yeast working away on the sugars.