Lines appearing in artwork with no reason
I have lines apearing in artwork with no reason. See screenshot. If I save the image they appear but also when I just zoom in. All layers are filling the whole screen so it can't be edges of layers. Anyone an idea? See screenshot. Also, when I drew the arrow to show it, more squared lines appeared as shown in screenshot.
Zooming out makes it dissapear. Also when I change something like from 8 bit to 16 bit it disappears until I draw a line or zoom in again 😞

