This happened on a couple of figures. In the example below, I purposely scaled down La Femme's bolero so there'd be collar pokethrough. I had set her right collar to not be visible in camera or raytracing. However, when I rendered, her right collar was visible.

I tried another Superfly render (low non-branched GPU). Same result. Then I tried Firefly. The collar was hidden in the render.

Is this a known issue?

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W11,Intel i9-14900KF @ 3.20GHz, 64.0 GB RAM, 64-bit, GeForce GTX 4070 Ti SUPER, 16GB. 

Old lady hobbyist.

All visual art or fiction is "playing with dolls."