installI cannot write or draw on the edges of the screen.

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Reason 1)
It is recommended to use a screen that does not exceed 100 inches. If you are using a screen larger than 100 inches, change the screen to a smaller size.

Reason 2)
It might be because the sensor is located too close to the screen, or because the spacesetting is not correctly done. Please refer to the vide below and redo the spacesetting.