Zombie don't attack villagers.

That’s because there is a block blocking the zombie from doing so.

Thank you for your report!
However, this issue is Incomplete.

Your report does not contain enough information. As such, we're unable to understand or reproduce the problem.

Zombies do attack villagers. If you're speaking to the exact scenario in the screenshot, its likely the zombie can't see the villager. You would need to explain more about why you think there is a bug at play here.

You are welcome to create a new ticket about your issue with more detailed information.
However, please review the Issue Guidelines before writing a new bug report.

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