Material names missing I finished joining meshes together. Before I closed Blender, I know the material names were appearing. Then I closed Blender and re-opened it. All of the material names are blank. It also appears Blender won't let me name the materials which are blank.


Switching back and forth between Cycles Render and Blender Render yields the same results.
Using Blender 2.77a
This was a known bug in 2.77a. https://developer.blender.org/T49228

I now installed Blender 2.78a and the issue is resolved by using the new version of Blender. The material is now saved and loaded correctly.