Quick KiCad Question

I'm using KiCad and I'm also using LibraryLoader to get some part libraries from Mouser.
All the parts that I have downloaded from Mouser have a symbol, footprint, and 3D model.
When I try to "update PCB from schematic" none of the downloaded parts have foot prints assigned to them.

If anyone could assist on as to why the footprints aren't attached to that part in PCB layout mode...

I would appreciate some guidance.

attempting to attach the schematic file

If there is no help forthcoming in this Arduino forum, I have always found the Kicad forum quite responsive and helpful, and if they dont know the answer .............................

have you updated the schematic?

There are lots of things to go wrong, but failing to generate and later import the netlist or not running CvPcb would cause such symptoms

Thanks, I'll look into other resources.