When a scene contains light groups, Maya and other DCCs simply add and asterisk to the AOV name in the output string, meaning all light group AOVs are assigned to a given driver.
"RGBA_* RGBA gaussian_filter defaultArnoldDriver/driver_exr.RGBA"
Exporting the scene to USD crashes, because the writer wants to convert the AOV name to a render var, but it fails.
Repro:
kick -resave light_group_test.usd light_group_test.ass
When a scene contains light groups, Maya and other DCCs simply add and asterisk to the AOV name in the output string, meaning all light group AOVs are assigned to a given driver.
Exporting the scene to USD crashes, because the writer wants to convert the AOV name to a render var, but it fails.
Repro: