Funny I haven't noticed this before, but today I was stacking some lines (no fills) on top of each other and got this:
Notice the very faint dark outline on each line. It will do for this job, but I expected the lines to seamlessly blend into each other, like fills do.
AS 9.5 MacPro Quadcore 3GHz 16GB OS 10.6.8 Quicktime 7.6.6
AS 11 MacPro 12core 3GHz 32GB OS 10.11 Quicktime 10.7.3
Moho 13.5 iMac Quadcore 2,9GHz 16GB OS 10.15
Moho 14.1 Mac Mini M2 Pro OS 13.7.6
Couldn't replicate it on my setup either. Mac OS X 10.7.5, ASP 9.2.
It almost looks like there's 2 strokes added to each line. The "outlines" look stacked. Have you tried deleting the stroke and re-adding it?
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"Of course I encourage kids to walk on my lawn. I mean, how else can I test out the death traps?"
Nope, don't see it here either. All the lines blend together with no edge.
I also tried it with a stroke on separate layers. They all blend seamlessly no edge.
As was already mentioned by CartoonMike, the edge shapes are "stacked". You can see this, some shapes are higher and lower and have mixed stacking order. This is definitely a multiple shape issue. I was able to create the same edge effect with two shapes on each vector shape, the lower shape slightly thicker.
Of course it's double strokes, thank you. As I said, it doesn't matter for this scene, so I keep it (and it's about 300 lines like this.)
AS 9.5 MacPro Quadcore 3GHz 16GB OS 10.6.8 Quicktime 7.6.6
AS 11 MacPro 12core 3GHz 32GB OS 10.11 Quicktime 10.7.3
Moho 13.5 iMac Quadcore 2,9GHz 16GB OS 10.15
Moho 14.1 Mac Mini M2 Pro OS 13.7.6