The bug

Wind charges can move in unusual ways. for example if you hit your own wind charge with your knockback sword, it will go up and then straight. Another way to do this bug is to throw a wind charge and detonate a nearby end crystal.

Steps to reproduce:

The knockback sword method:

1. Hold a sword with knockback and wind charge in your off-hand.
2. Throw the wind charge and hit it with the sword as soon as you can

The end crystal method:

1. Throw a wind charge next to an already placed end crystal.
2. As soon as the wind charge is thrown detonate the end crystal.
3. Notice how the wind charge is moving in an unusual way.

Intended behavior

The wind charge should move straight no matter what

Actual behavior

It goes in different directions either from your hit with your knockback sword, or with an end crystal.

Video

Here's a video demonstrating the bug with the knockback sword:

https://youtu.be/4XMKuV1_8qY

And here's a video demonstrating the bug with end crystals:

https://youtu.be/J-wqxDNE-3k