Barbarus

Hi guys, I am frustrated... Trying to save a model from Cura in Gcode but it does not save a complete model. So when I open it up I only get the first few layers and then it stops. I have tried saving on to the computer instead of SD - does not help. Tried re-installing it all - same. I have succeeded with a few prints in the beginning and then all of a sudden this starts happening. Any ideas what might cause this?