MVN passes with video enabled but malleus script failed with video disabled

when i run the mvn command from the jitsi-torture directory, the camera icon is enabled. as you can see in the screenshot below.

mvn -U clean test -Djitsi-meet.instance.url="https://socialhour.vewmet.com/"

Where as when i run the malleus shell script, the camera icon is disabled which is running on selenium grid hub. check the below screenshot.

sh scripts/malleus.sh --conferences=1 --participants=5 --senders=1 --audio-senders=5 --duration=200 --room-name-prefix=hamergrows --hub-url=http://X.Y.Z.W:4444/wd/hub --instance-url=https://socialhour.vewmet.com/ --allow-insecure-certs=true

What is the issue here, why iam unable to test the jitsi meet with video.