When you throw multiple wind charges in one direction, they can collide with each other when they get too far out of render distance, which they usually keep going until they hit ground, but normal projectiles don't collide with each other. This can be annoying when trying to stack wind charges, or when two players or a breeze throw wind charges at each other.

Steps to reproduce:

• Throw multiple wind charges in one direction, not pointing towards ground.
• Notice that after while, you may see explosions in the air where you threw the wind charges.

Another option:

• Put a breeze in a boat or in a cage, and make sure that the breeze can hit you.
• Go into survival mode, and aggravate the breeze by throwing a wind charge at it.
• Time your throws so that the wind charge will hit the breeze's wind charge.
• Notice how the wind charge will hit the breeze's wind charge, and not go through it into the breeze. 

What should happen:

The wind charge should go through each other, just like Java edition.