Edius 5 GPU Effecs transparency feature

[Belphegor]

I know it's been discussed here.

Does Edius 5 GPU Effects Transparency feature works or not?

I tried many things but I always get a black background.

Am I worng?

[antonsvideo]

I also get a black background, so that maybe normal or a bug?

[Bandman]

I get a black background.

[GrassValley_BH]

One important thing:
You must have video on a track below the transition (ie, there must be video "behind" or "under" the transition area) in order for transition's transparency to even have a chance to work, even if that "behind/under" video isn't seen in the transition.

I've had mixed results with transparent background. I think there's a bug in selecting the option so toggling it off, then back on, sometimes works.