HDRP Transparency Shader with Runtime GLTF

Hello, I'm working on a project that requires runtime .glb models to be imported. I'm currently using the HDRP as it looks so much nicer than the URP. I've upgraded the included shaders to work with HDRP and the majority of materials that are imported with the model work as expected. However transparent materials appear opaque and require me to almost "refresh" the material by clicking the material in the project window. Due to these models being imported at runtime, I would be unable to perform this "refresh".

Any help would be greatly appreciated!

Thanks, Jamie