Ambient Occlusion Material Mask doesn't work with normals

Hello,

I have a problem with the new ambient occlusion material mask feature. When I blend two Material Functions with the MatLayerBlend_Standard node using PrecomputedAOMask it seems that the normal channel is not affected at all.
On the forums I found a post which describes the same problem but with a simple lerp blend setup:
new Ambient Occlusion Material Mask do not work with final material Normal input.

Thanks in advance!

Hi easternWize -

Thank you for your help in identifying this issue. I have entered a bug report as UE-21257. As we investigate this issue further I will keep you informed here.

Thank You

Eric Ketchum

Great! Thanks for the quick reply!