texture on trimmed surface (maya) not placed properly

[max_schoenherr]

hi, i just created a tutorial about how to NURBS model a maple leaf: https://youtu.be/mbTIsN6M2Hg

when i rendered the scene using arnold i get a wrongly placed texture.

here are two screenshots with a different image, a rectangular projection and the same problem.

above: maya viewport 2.0: properly cut out and placed texture.

arnold rendering gets the whole projection wrong.

PS: converting the NURBS object to a polygon helps: arnold renders the texture properly. but how about people who want to stick to NURBS and continue working on that object?