Loading an alembic in vrayproxy looses uvs

V-Ray V-Ray for 3ds Max Issues
1

​I export an alembic from speedtree, if I import using 3dsmax import, the uvs are all there:

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However, if I use a vrayproxy, and I load the same alembic, looks like allt he uvs are broken, both on the preview file, and at rendertime:
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Theres any limitation loading alembics using vrayproxys? we need a specific naming convention? Thanks!​

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2

Oh I remember I had this problem before, I need to use the "Force first map channel on the compatibility proxy parameters, XD