I have this image in STL
But it seems cura skipped the lower panel entirely when slicing the STL.
The base is thick, as you can see here, but it is still missing in Preview, and Cura seems to ignore the base.
I have tried to decrease to 0.1mm for width or initial layer, but cura still ignored the base panel.
I also found this odd behaviour in a number of my models.. such as this:
Notice those missing parts? It is like some parts are floating in the air.
Can someone help me out here? What kind of setting I have to modify?