The palette window is blank (black/white square). Solution: This is a GPU rendering conflict. Go to Preferences > General and uncheck "Use Accelerated graphics for Palettes." Restart the app.
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Navigate to Tools > Options > System > Graphics Performance . Ensure is checked ON . If you see glitches, toggle it off. For AMD Radeon cards, leave it ON. For Intel Iris graphics, turn it OFF to prevent lag.
