mujoco recorded video is blank screen

[skr3178]

I created an env with the requirements file [requirements.txt and requirements-mujoco.txt ]using pip. Both are on python 3.9.19 On running command MUJOCO_GL=egl python ppo_continuous_action.py --track --save-model --upload-model --hf-entity cleanrl --env-id Humanoid-v4 --seed 1

the recorded videos are blank/black screen.

There was another env I experimented with and the videos created from it on training recorded humanoid in mujoco (it works as expected).