[Bug Report] Manual control shows nothing

[hantao-zhou]

If you are submitting a bug report, please fill in the following details and use the tag [bug].

Describe the bug Running the example startup code on macos result in nothing, no window shows though one is expected.

python ./manual_control.py --env-name MiniWorld-Hallway-v0 --top_view

Code example Please try to provide a minimal example to reproduce the bug. Error messages and stack traces are also helpful.

System Info macos

Additional context Add any other context about the problem here.

Checklist

• [ ] I have checked that there is no similar issue in the repo (required)

[BolunDai0216]

Are there any other outputs in the terminal?