Hey guys… 
I have been working on a project in Blender, and I am running into an issue when trying to render transparent backgrounds. I have set up the materials and scene correctly, and I’ve enabled the Transparent setting in the Render Properties under the Film tab. However, when I render the scene, the transparency isn’t showing up as expected – it’s rendering with a solid background instead.
I’ve also tried saving the image as a PNG with RGBA channels, but I’m still seeing the solid background in the final render.
Has anyone encountered this issue before? If so, what am I missing, or what steps should I check to ensure that the transparency works correctly?
I also check this: https://blenderartists.org/t/transparent-background-rendering-problaws-devops-training But I have not found any solution. Could anyone guide me about this? Any advice or solutions would be greatly appreciated!
Thanks in advance for your help!
Respected community member! 
This isn’t likely to be terribly helpful, but it is a situation that I faced before:
I had a render with a transparent background, and all the settings appeared correct in Blender - Film > Transparency, material shader with an Alpha/Transparent input etc.
But every frame I checked had a plain black background, and I couldn’t figure out how to get rid of it.
As it turned out, every frame actually DID have a transparent background, but the image preview utility I was using displayed transparent areas as black.
Opening the same images up in a program that properly supported transparency showed that they were all exactly as Blender said they should be.
If this isn’t the case for you, and you’ve verified that your transparency isn’t working even in a program that supports it, then double check that the area that needs to be transparent is fully black. Any color other than pure black will prevent it from being fully transparent.
Beyond that, you might need to upload your blend file for debugging.
Hope that helps!