Vizis

Hey just installed Ultimate Cura 4.8 on win7 64x, i've set Generic PLA cost and wieght, i also set it as material for slicer at the top, but when i press Slice, i got end result 0 minutes, 0g, 0.00m. Also im not able to use preview, i mean, i can switch it on but no timelapse, no layers etc How can i fix that?