Computer-use-preview model never sends a "back" action

I am using computer-use-preview-2025-03-11 to run a browser agent, both with:

No matter how I try to instruct it to use the browser’s back function, it never sends a back action.

I can see the back action is defined in the official Python example (here), but I have never been able to make it trigger.

Besides the official Python example, I couldn’t find a list of supported actions, and the documentation page seems to be broken:
https://platform.openai.com/docs/assistants/tools-computer-use

Has anyone successfully triggered the back action? Is there a workaround or an updated list of supported actions?

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