I have a Wacom Cintiq 13HD, and I know that I have pen tilt on my Cintiq because it has worked before a couple of times in photoshop, and it works in Paint Tool Sai. (btw I have the photoshop that you pay for monthly not the smaller one-time payment one). Whenever I try to use a brush that needs the tilt option, it doesn't work. Opacity and pressure are fine though. I have gone to shape dynamics in the brush setting but whenever I chose 'tilt', a warning symbol appears saying that it isn't compatible... also I have resetted photoshop multiple times and it doesn't make any difference to it.