Texture disappear on joining I am making a tree, in which I have a texture for the central tree object or bark, and branches have a different texture.  

I applied the branches on tree with particle system.  Till then the textures were fine.  

Then I convert the particle system and delete the particle system.  

Then ctrl+j join to the main bark texture with the branches, with the bark or central stem as parent.  

Doing this, texture from my branch material disappears.  

Please anyone help me out.  ASAP.! Thanks
Be sure that both UV Maps have the same name, otherwise the textures will not share the same space when they are a single object.