Mesh converter doesn't generate full gameobject assets, only mesh assets

[unitycoder]

And those mesh assets don't have materials assigned to them (should be full gameobjects..)

for now:
you can drag and drop all the mesh assets into scene, and they will turn into gameobjects with renderers, and then multiselect to assign material to all..

[unitycoder]

in next update v2.20, full gameobject is saved (if [x] add meshes to current scene is enabled.
Note: if [x] Create Lods is enabled, then it falls back to saving main meshes only.