Hi guys,
I just found out that normal maps are not working as intended if not used on uvchannel0 but 1 or above instead. It’s not an issue of a flipped green channel but seems to be a more general issue/bug?
green: normal map on uvchannel0
red: normal map on rotated uvchannel1 , light direction does not match by 90 degrees (see red arrow from directional light)