The model I created in the Houdini output FBX, which cannot output the uv.z value.The z values of uv1,uv2, and uv3 cannot be printed.As the attachment.
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seelanSorry, I imported FBX into Unity, and then appeared the value that could not be read to uv.z.Sorry, I'm in the wrong place.
Please submit a bug report through our support. This is an FBX issue, but this forum is for the Unity plugin.