USD files from gaffer miss render outputs (and renderpass)

[willDTF]

Version: Gaffer 1.4.15.2-windows
Third-party tools: Arnold 7.3.3.1

Description

Gaffer do not write outputs in usd
renderpass are also not working through SceneWriter

looking at a usda file made with gaffer, Outputs isn't present

Steps to reproduce

render scene.usda with arnold command line kick
arnold sdk complain :

example of working file
render SolarisArnoldFrameExp.main_expression.usda with kick : render is complete

repro files:
renderWithKick.zip

Debug log

ERROR | [aov] no valid output statements found