It appears that most trees are showing the same pattern of texture mix - a trunk texture is applied to part of the leaves mesh. Please review the forum post: https://forum.reallusion.com/FindPost402610.aspx
Hi Admin, Please see my post at the forum: https://forum.reallusion.com/FindPost401578.aspx
Hi 4u2ges, Please see the second bullet of the Materials section in the link bellow, and see if this is your case? http://manual.reallusion.com/Iray_Render_Plug_in/ENU/1/Default.htm#Iray_Plugin/1.0/08_Troubleshooting/Known%20Issues.htm%3FTocPath%3D_____10 Reallusion
Please find the project link below. I'll make it public, since it is a default iClone project. I just slightly customized it. I replaced the reference video for TV screen with still picture. Note: the problem only seen after the scene is exported. Preview mode is OK https://www.dropbox.com/s/swdb48ofqbqa2g0/3.Self-illumination_TV.zip?dl=0
Hi, 4u2ges, Please provide the project to help us identify the problem. You can attach the project or put the download link in your next comment, and use Private Comment if you want to keep it private. Reallusion