Operating system: Win 10 64Bit
Graphics card: Nvidia GTX 1050
(example: 2.79b release)
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28, as found on the splash screen)
I am following a grease pencil tutorial and am creating a new material. But when I try to alter the opacity to get a solid fill , it refuses to update and still keeps the opacity at 0.
I am in 2D animation mode:Draw: Properties panel: create a new material: Fill settings: Solid.. here you try to adjust the opaciy
Blender file attached