1.16.x knockback bug

[Wonderlands23]

'/viaversion dump' Output

https://dump.viaversion.com/7f11db2ec41a5a2ebcd54d1e5965739c4248822e93aa666cd380badea8258861

Console Error

No errors.

Bug Description

Joining on 1.20.x server with 1.16.x client won't give you knockback in certain situations.

Steps to Reproduce

1. join with 1.16.x client on 1.20.x server
2. put on elytra and try to get stuck between blocks (make yourself in gliding state)
3. glide on the corner of the block and click on CTRL

You won't get any knockback no matter what.

Here is video example: https://youtu.be/wpm5_VdLhEQ

Expected Behavior

player should take knockback

Additional Server Info

No response

Checklist

• Via plugins are only running on EITHER the backend servers (e.g. Paper) OR the proxy (e.g. Velocity), not on both.
• I have included a ViaVersion dump.
• If applicable, I have included a paste (not a screenshot) of the error.
• I have tried a build from https://ci.viaversion.com/ and the issue still persists.

[Barvalg]

[kennytv]

Try without other plugins, generally something like this would be on anticheats/simply different client behavior we cannot change