Decal's alpha channel is not actually transparent

[Roberta_R]

Hello everyone, is there a way to hide the outline of the PNG I am using as decal/texture in the final render? It should be totally transparent, but I can clearly see the “bounding box”. Thank you in advance.

[nathanletwory (Nathan 'jesterKing' Letwory)]

Can’t say I can repeat that:

Make sure that your image has the alpha channel fully transparent.