The Fab default materials have incorrect Ambient Occlusion value of 0 when not using material AO, should be 1

Summary

The Fab default materials have incorrect Ambien Occlusion value of 0 when not using material AO, should be 1

What type of bug are you experiencing?

Other

Steps to Reproduce

Add any quixel 3d asset, the part in shadow is completely black, AO value should be 1 and not 0 as default when not using material AO

Expected Result

The asset should have GI and ambient skylight, but instead it is completely black

Observed Result

Add any quixel 3d asset, the part in shadow is completely black, AO value should be 1 and not 0 as default when not using material AO

Platform

In Editor 5.4 and 5.5

Operating System

Windows