Hdr randomization in Replicator Code not working all the time

So I’m trying to get Replicator select random backgrounds from the default sky pack to apply to a dome light every frame. Sometimes the background won’t load at all however.
Below is the function I’m using:

def dome_lights():
    lights = rep.create.light(
        light_type="Dome",
        rotation= (270,0,0),
        texture=rep.distribution.choice([
            'omniverse://localhost/NVIDIA/Assets/Skies/Cloudy/champagne_castle_1_4k.hdr',
            'omniverse://localhost/NVIDIA/Assets/Skies/Clear/evening_road_01_4k.hdr',
            'omniverse://localhost/NVIDIA/Assets/Skies/Clear/mealie_road_4k.hdr',
            'omniverse://localhost/NVIDIA/Assets/Skies/Clear/qwantani_4k.hdr',
            'omniverse://localhost/NVIDIA/Assets/Skies/Clear/noon_grass_4k.hdr',
            'omniverse://localhost/NVIDIA/Assets/Skies/Indoor/entrance_hall_4k.hdr'
            ])
        )
    return lights.node

(Also if possible I’d like the models I’m randomizing to not clip into each other, not sure how to go about that but I’m taking things one at a time.)

kit_20221025_182854.log (971.8 KB)

Could someone please help with the backgrounds? Here’s the full code just in case:

import omni.replicator.core as rep

with rep.new_layer():
camera = rep.create.camera(position=(0, 250, 1300), focal_length = 18.14756)
render_product = rep.create.render_product(camera, (1920, 1200))

def dome_lights():
    lights = rep.create.light(
        light_type="Dome",
        rotation= (270,0,0),
        texture=rep.distribution.choice([
            '/home/ubuntu/Documents/AIM/EXR/belfast_sunset_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/belfast_sunset_puresky_4k.hdr', 
            '/home/ubuntu/Documents/AIM/EXR/castel_st_angelo_roof_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/fouriesburg_mountain_cloudy_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/garden_nook_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/golf_course_sunrise_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/neon_photostudio_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/outdoor_workshop_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/pretville_cinema_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/pretville_street_4k.hdr', 
            '/home/ubuntu/Documents/AIM/EXR/rainforest_trail_4k.hdr', 
            '/home/ubuntu/Documents/AIM/EXR/sandsloot_4k.hdr', 
            '/home/ubuntu/Documents/AIM/EXR/snowy_field_4k.hdr'
            '/home/ubuntu/Documents/AIM/EXR/studio_small_09_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/wide_street_01_4k.hdr',
            '/home/ubuntu/Documents/AIM/EXR/workshop_4k.hdr'
            ])
        )
    return lights.node
rep.randomizer.register(dome_lights)

def move_shapes():
    shapes = rep.get.prims(semantics=[
        ('class', 'BlueMonster'), ('class', 'GreenMonster'), ('class', 'WhiteMonster'), 
        ('class', 'PurpleMonster'), ('class', 'OrangeMonster'), ('class', 'PinkMonster')])
    with shapes:
        rep.modify.pose(
            position=rep.distribution.uniform((-700, -400, -4000), (700, 700, 0)), 
            rotation=rep.distribution.uniform((0, 0, 0), (360, 360, 360))
        )   
    return shapes.node
rep.randomizer.register(move_shapes)

with rep.trigger.on_frame(num_frames=1000):
    rep.randomizer.move_shapes()
    rep.randomizer.dome_lights()

writer = rep.WriterRegistry.get("BasicWriter")
writer.initialize(
    output_dir="Cans_BigBoyPack2",
    rgb=True,
    bounding_box_2d_tight=True,
    bounding_box_2d_loose=True,
    semantic_segmentation=True,
    instance_segmentation=True,
    bounding_box_3d=True,
    occlusion=True,
    normals=True,
)
writer.attach([render_product])