New to this 3D Printing scene. Im was using RepG and wanted to try Makerbot software and created the .x3g file and put it on an SD card. Now when i load the file it wont heat up my extruder even if i override the temps on the Printer. I looks like its gonna start printing my Bed heats up but my extruder just wont heat up. I made sure my setting where all set in makebot including the heat and what extruder to use, I use my left. Any help will be appreciated. Only does this when i create the x3g file from Makerbot software.