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Material TexCoords change with U/V mirroring toggle

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As you can see in the previews. It changes more than the mirroring when I toggle it.
If I leave it mirrored it lines up as expected.

Try using component mask to break into r and g channels, and then do a oneminus on the r channel and reappear them.

You can also make them parameters so that they are modifiable in MICs:

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