Dragging colors or materials for the color wells to the lower user palette is not working for me in 2015 Pro. The colors are not saved and some of the squares are filled with gray. Important functionality is gone. Help!
Macbook Pro 2.5 GHz Intel Core i7 / 16 GB 1600 MHz DDR3 / AMD Radeon R9 M370X 2048 MB / OSX v10.10.5