I have had Bryce for a while but done nothing fancy with it. I have run into a problem and I am stumped - please help me. I imported an obj file of a plant. The branches are modelled as flat polygons and use transmapped image textures. I have applied the textures using the material lab being careful to tick the "blend transparency option". However, some parts of the plant don't show the proper transparency, others do. I have some branches that look fine, others are black with the image of the texture showing. All branches use the same material. The same object renders fine in Poser 8. I must be doing something wrong in Bryce, but I don't know what. An image of my test render is attached.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch