xfrog and vray 1.47.02

Is someone have any problem with Xfrog flower or tree.
I have this warning when I render:
Warning: invalid texture dérivatives(UVW 0,0,1, #QNAN)
Why?

It happens when some object has problems either with UVW coordinates, or with the vertices… welding the geometry and/or texture vertices may help.

Best regards,
Vlado

I have the same problem! And it didn’t happen in the previous versions of Vray.
This message, “Warning: invalid texture dérivatives(UVW 0,0,1, #QNAN)”,
doesn’t aper once it keeps on going and I get a huge report of errors.

For me this started with 1.47.03.

are you using either EMesh or Epoly versions of the x-frog trees or your using x-frog import plugin?

the import plugin!

i dont know if its been fixed but i used to get alot of trouble with that plugin. when rendering it took forever in the calculating geometry stage as opposed to the EMesh or EPoly versions

import plugin also.