I don't know if it's a Multitexture or Corona Bug or my problem
I have a simple geometry floor + CoronaMtl (with ColorCorrection -> MultiTexture as diffuse texture)
The texture path is a correct network path.
But, when I open this max file with a different PC (in the same intra-net network), the texture inside MultiTexture are not visible.
(*) I have to ope the material editor,
(*) "pick material prom object" (now I can see the shader in Material editor, but without texture)
(*) Click the "Reload" button on MultiTexture map.
If I "pick material prom object", now the texture are again visible.
I never had this problem in VRay.