Gerbers (GerbView) If you have issues generating or viewing your gerbers, you should post about it here. Also issues with file formates or understanding what gerbers should be used for.
3D Models This category is about the 3D modeling capabilities of KiCad, including the ability to import models of the components and export models of the entire PCB for external programs.
Footprints This category is specifically about footprints. It is nested inside of the "Layout" category, as it is closely tied to it. For all issues with the actual software (import errors, etc), please post under the "software" section.

About the Layout category [Layout] (2)
2 separated grounds [Layout] (12)
Netlist Load Error [Footprints] (7)
Creating a Board with preassembled modules [Layout] (5)
Full python Via Stitching [Layout] (4)
Grid lines vs grid dots [Layout] (6)
Can I do a hatched polygon on KiCAD [Layout] (16)
Strange circles in the gerber ( 2 ) [Gerbers (GerbView)] (26)
Run trace in new component ( 2 ) [Footprints] (25)
Components with internally connected pins [Footprints] (19)
Meaning of segment status [Layout] (8)
OpenGL on remote desktop [Layout] (8)
V5 Heads Up - Devs Don't Explain Here The Upcoming Changes ( 2 ) [Footprints] (27)
Pads changed to Vias on Gerber to PCB export [Gerbers (GerbView)] (15)
Pcbnew Error: Unable to create file [Gerbers (GerbView)] (6)
Is it possible to have a 3D model, relative path to custom footprint? ( 2 ) [3D Models] (28)
How to make thermal pad connect to GND [Footprints] (10)
'rebuild board connectivity' what exactly does it try to do? [Layout] (9)
Routing enhancements ( 2 ) [Layout] (36)
Footprints/pads on internal layers [Layout] (15)
Using pcbnew without netlist [Layout] (4)
Size of exposed pads [Footprints] (14)
Almost square hole in footprint [Footprints] (11)
Custom 3D model not showing in PCBNew [3D Models] (3)
Flood fill quality [Layout] (8)
RJ10 - footprints [Footprints] (2)
Fetching Footprints libs locally ( 2 ) [Footprints] (22)
Online KiCad Footprint Database [Footprints] (1)
I created a new kicad3Dmodels library ( 2 3 ) [Layout] (46)
How to move all routes from back to front Cu [Layout] (7)