VRay Next and Skatter

SketchUp version : 2018
Skatter version (Skatter dialog > Options > About) : 1.4.7
OS : Windows 10
Description of the issue : Vray Next and leaves on proxies
Are you able to reproduce the issue every time? (If yes, how?) :Yes
Error in Ruby Console? (Window > Ruby Console) :

Leaves on tree and bush proxies don’t render at all with Vray Next and Sketchup 2018.

Is this a known bug?

There is an issue with UV mapping in 2sided material, that I reported to Chaos Group: https://discourse.chaosgroup.com/t/bug-twosided-material-uv-issue/429
They say this is by design, but that sounds plain wrong to me. I hope I will be able to change their mind

This issue has been fixed in V-Ray Next Hotfix 1 : https://forums.chaosgroup.com/forum/v-ray-for-sketchup-forums/v-ray-for-sketchup-announcements/1033526-v-ray-next-for-sketchup-hotfix-1-is-now-available