Missing object meta after InitialRandomSpawn

Hi team,

I found that for certain environment and certain random seed, after InitialRandomSpawn action, there will be objects missing from the returned object metadata. One example to reproduce this issue is attached. I tested it on both 3.3.1 and 3.3.4.

After running the following script, the two print statements will print 38 and 37 respectively. The credit card object is missing.

Could you please help take a look at this? Thanks!!

import ai2thor.controller

scene = 'FloorPlan214_physics'
controller = ai2thor.controller.Controller(
    width=300,
    height=300,
    local_build=False,
    start_unity=True,
    scene=scene,
    port=8201,
    host='127.0.0.1',
    agentMode='default',
    )
event = controller.reset(scene)
object_meta = event.metadata['objects']
print(len(object_meta))


controller.reset(scene)
shuffled_event = controller.step(
    action='InitialRandomSpawn',
    randomSeed=17,
    forceVisible=False,
    numPlacementAttempts=5,
    placeStationary=True
    )

object_meta = shuffled_event.metadata['objects']
print(len(object_meta))

[mattdeitke]

FWIW, here are where the tests are running and failing still: https://colab.research.google.com/drive/1jysHfPA5NJdvjbTuXq1aWGK1fX4UNVeZ?usp=sharing

[winthos]

ok, i’ve confirmed all these issues were cascades off of each other. I’ve tried the same test collab matt threw together using the commit from my PR #821 and it correctly shows all 38 objects even after randomization, and the credit card is in scene.

https://colab.research.google.com/drive/1W9k6TPMOjD7k8vVdeXLhH3uB0u-Hu6Cy?usp=sharing