[BUG]white cubes in the scene

[jgranie]

Describe the bug
Why is there some cubes in the generated scene ? The following image was rendered with Blender 3.6:

Steps to Reproduce

• What version of the code were you using? Tell us the output of git log -n 1
  '''
  commit 2c51a18 (HEAD -> main, origin/main, origin/HEAD)
  '''

• What command did you run?
  546 $BLENDER -noaudio --background --python generate.py -- --seed 0 --task coarse -g forest simple --output_folder outputs/forest/coarse
  547 $BLENDER -noaudio --background --python generate.py -- --seed 0 --task populate fine_terrain -g forest simple --input_folder outputs/forest/coarse --output_folder outputs/forest/fine\n
  548 $BLENDER -noaudio --background --python generate.py -- --seed 0 --task render -g forest simple --input_folder outputs/forest/fine --output_folder outputs/forest/frames\n
  549 $BLENDER -noaudio --background --python generate.py -- --seed 0 --task render -g forest simple --input_folder outputs/forest/fine --output_folder outputs/forest/frames -p render.render_image_func=@flat/render_image

• What are your output logs?

Add your logs here, preferably from a job run with --debug 

** (If this is your first time running Infinigen) What are the full output logs of install.sh ?**

Add your install.sh logs here

Platform

• OS & OS Version: MacOS 13.4.1
• GPU (?) : M1
• GPU Driver Version (?) : ?
• RAM (GB): 16

Additional context

[araistrick]

Hello, these cubes are supposed to be placeholders for objects that are not visible and did not get populated, but there seems to be some kind of rare bug that causes this. I will patch a temporary fix soon

[araistrick]

I added a bandaid fix in a28da5a to at least hide the cubes, doesnt yet fix the underlying cause for why they arent being populated, will revisit hopefully for v1.0.2