UE4 doesn't properly import transparent PSD files

I understand that this happens when using pngs, but this is the original PSD.
So I don’t think that it has to do with interpolation, I think it has to do with the import process.

In Unity for example the exact same PSD imports with the correct colour and no white halo.
6eb980b307aaec1aee0262cc53f365bc2604434f.jpeg