Import FBX from C4D with textures embed and assigned

Hello everyone,
I try to export a fbx file from c4d with embed textures for not have to reassign all textures to material in PlayCanvas.
It seems to be an issue with c4d fbx exporter because Playcanvas only import materials but no texture.
If I open my fbx with AutoDesk FBX Review, no texture either. The fbx file is 200 Mo so I know textures are in it.
Any ideas?