Training with multiple GPUs has error using TAO toolkit

Accelerated Computing Intelligent Video Analytics TAO Toolkit
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I meant I still have this error.

I can run maskrcnn command using the workaround approach.

If I do like,

docker login nvcr.io
workon launcher
jupyter notebook --ip 0.0.0.0 --allow-root --port 8888
!tao maskrcnn train xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

the container still stops.
Multiple GPUs training doesn’t work in workaround approach.