Hi, I have faced with alpha blending problem.
So, in my example I used
and as you can see, by default it creates this Hard edge clipping alpha. I dont know, maybe this is my mistake, or problem with my model (I tested single sided and double sided models, no change)
But if i switch to sky (in queue bucket) hard edge dissapear, but...it is sky rendering mode
Default model have same artefacts: