UE5 Preview 2 Decal Blend Modes Missing "Stain"

Deferred Decal materials in Preview 2 seem to missing the “Stain” blend mode. As a result decals now look different to what they looked in Early Access 2 and UE4. Is there a new setting or work around? Currently the decals don’t look good and the only thing I can find to get them to blend with the background is playing with the opacity and position of the decal, but nowhere near the same result as the original “Stain” blend mode. Please help.