I recently tried getting some custom made traffic signs into carla using the docker method described here.
After some messing around with the blender fbx export settings, I resolved the problem of not getting any static mesh files at all. Now I can actually import the package into a Carla installation, however none of the seem to have any textures when I spawn them CARLA’s the blueprint system.
The export results in 6 files per prop (1 .uasset and 1 .uexp per static mesh/material/texture). These files are very small though.
Importing my fbx directly into Unreal also creats the three .uasset files (much larger ones though) and the props display fine.
Maybe it is interesting to note, that parts of the props do not show the default checkered Unreal texture, but instead a grainy greyish texture. This same texture (on the same pieces of the prop) also shows for a few seconds when I directly load the fbx in unreal. It is replaced by the correct textures after a few seconds though.
Any help would be much appreciated!