The issue you're experiencing with the screen going black when maximizing or going fullscreen on your Wacom Cintiq Pro 27 could indeed be related to the Wacom drivers or how they interact with Spine. There have been reports of similar issues with external monitors and specific hardware setups. It's recommended to check if you have the latest graphics drivers installed, as Spine uses OpenGL and relies heavily on the graphics drivers. Additionally, you might want to try running Spine in windowed mode as a temporary workaround, as you've been doing. If possible, test Spine on a different monitor to see if the issue persists, which could help determine if the problem is specific to the Cintiq.
