I purchased one of the jewlery molds and kiln washed it before use. I put in the glass frit and fused it following the recommended firing schedule, but the glass will not release from the mold. Any suggestions?

Hi, I recently bought the mold to make the pendants and earring sets. I used a kiln wash on the mold, coating 5 times. I fused the glass and now cannot get the glass out of the mold. Any suggestions?