Unable to load G-code in Ultimaker Cura I have generated a few 3D prints in G-code using KISSlicer and Slic3r, but when I load them into Ultimaker Cura I'm unable to get anything. The number of layers says one but I cannot see anything and print option is not working. I have viewed these G-codes online and they are fine. I'm using a Lulzbot KITTAZ with v2 toolhead (hexagon) and I can print only using Ultimaker Cura. Please tell me what the reason for this is.
Update: 

Cura 2.5, and higher, does load and print G-code. 

(The support was added April 19, 2017.)