I'm taking a Research and Development class at my high school, and as a part of it, I'm printing parts for a VR Headset. We're using an Ultimaker Plus(I think) and we have small issue. When I load the gcode to start printing, the bed doesn't adjust and the nozzle just starts extruding leaving a squiggly mess in the outline of the part. And this only happens with the one file! We've tested it out with other gcodes and it worked just fine. I'm on a bit of a deadline so I would appreciate any help.