Share 'need help with jelly fillings'

Does anyone have tips for effectively sealing a molded chocolate piece when being filled with semi-liquid jelly? After making the top shell of a chocolate mold, and after filling it with a semi-liquid jelly, the liquid part of the jell will float through a liquid layer of chocolate piped onto the top of the jelly filling. This perforates what will become the “bottom” of the shell when it is de-m…