Different Alpha results on GLTF in Three vs Babylon

Apologies if this has been asked before, I have a gltf that is using an alpha. However in Three there is a distinctly white edge that does not appear in the Babylon preview environment - Is this to do with blending modes and if so how can I edit them for a GLTF material?

Three:
image

Babylon:
image

Cheers!

Do you mind sharing the glTF asset in this topic?

Even better, it would be helpful to directly demonstrate the rendering issue with a live example. In this way, it’s clear how you setup your renderer and scene.