Flash line scaling artifacts under high zoom level

Question

I am drawing lines using moveTo/lineTo on a sprite. That sprite is zoomed/panned with its transform matrix.

The issue can be seen when zooming at approximately 80000%. Lines randomly vary in size with the variance getting larger and larger with more zoom to the point that a single line can take the whole screen even though the lines are drawn with scaleMode=LineScaleMode.NONE.

I have tried many combination of LineScaleMode, pixelHinting, StageQuality without eliminating the issue. Setting LOW quality stage and pixelHinting=false made it less pronounced.

I am unable to attach images of the effect because I lack the required reputation.