Problem generating TTF with Fontographer 5.2


Hello everyone. I'm having problems generating a TTF file with Fontographer 5.2 (win8). The system's file preview shows the gliphs distorted and the uploaded font to seems deformed. This doesn't happen when I generate a OTF. You can see what I mean in the next images.

Does anyone know whats going on?

Thanks in advance!


TTF grid