Texture painting only working in UV/Image editor I'm a bit new to blender and I have had a reoccurring issue with the texture painting either not effecting the 3d view model in a productive manner(painting over a million times with little effect) or not working at all while being fully functional in the UV/Image Editor. Am I missing a setting?
I had the exact same problem. I know it's been 3 years, so I guess you find a way to fix this, but if someone has the same issue, try deactivating the Backface Culling option in the brush options.