the sound of the warden's heartbeat is not coordinated with the pulsing souls

Have you tryed resetting minecraft

Yes

Thank you for your report!

However, this issue has been temporarily closed as Awaiting Response.

The attached video appears to show the souls on the Warden's chest being synced with the beating sound effect. Are you referring to this, or to something else?

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Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.

For any account or purchasing related issues, please contact Minecraft Customer Support directly, as we cannot assist with those here at the bug tracker.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki