When I use the command /replaceitem entity @e slot.weapon.mainhand 1 air to vindicators, their animation (in the picture) just like zombies!!!
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The similar thing is:they attack with their two hands just like zombies…

The similar thing is:they attack with their two hands just like zombies…
Works as intended. See: MC-195266

Works as intended. See: MC-195266
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Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response
If you feel this is still a valid issue in the latest version, then please update the ticket accordingly and ensure that it follows the Issue Guidelines including clear 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.
This ticket will automatically reopen when you reply.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki

Still a issue
can confirm in 1.17.10