Fading coloring from solid to scratchy.

Hi! I am not sure why this is happening but when I have solid colors in a board they all of a sudden turn scratchy unless I merge all the layers (its driving me insane) and it wasn’t doing this an hour ago. Attached are images below! Any help is appreciated

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Hello, your screenshot is too small and too vague to see the problem you are talking about.
Is your computer a laptop or a desktop computer? What is the model of the graphics card?
If it’s a laptop, have you ever tried to right-click on the desktop of the computer and select: Run with graphics processor - High-performance NVIDIA processor to run SBP software?