Just a little update, as I ran into an issue that might have been discussed while my absence.
When looking at the attached picture you might notice some interrupted lighting in the sky. One on the left hand side and two starting on the right hand side. These were the triangulared render parts of TG2TP. Enviro and GI were turned off. I have seen that befor but thought that it was due to multiple suns I used ... but this render had only one sun.
The same thing happened without that tree, too.
Regards,
Volker Harun