The attached drawing is part of a large drawing. It's large enough that it won't fit on my screen at 100% zoom. In this portion of the drawing there are several shapes with a fill and a stroke. Both are shades of gray. The shapes are set to fit snugly against each other. Then the stroke is centered. So the strokes overlap.
There is a red background.
As I zoom out the strokes turn transparent. It doesn't seem to matter if the stroke is inside, outside or centered. The color of the stroke makes little difference.
How can I stop the strokes from turning transparent when zoomed to 25% or less?
Thank you.
Test30.afdesign