Arrowns cannot pass through the gap under iron bars protecting End Crystals

In the End dimension, some obsidian towers have End Crystals protected by iron bars. Visually, there is a small gap between the bottom of the iron bars and the obsidian block.
In Minecraft Java Edition, arrows can pass through this gap and destroy the End Crystal as expected. However, in Minecraft Bedrock Edition, arrows do not pass through this opening and instead collide as if the iron bars extend all the way down.
This suggests that the hitbox of the iron bars in Bedrock Edition is larger than the visual model, preventing projectiles from passing through a visible opening.

Steps to Reproduce:

• Enter the End in Minecraft Bedrock Edition

• Locate an obsidian tower with iron bars protecting an End Crystal

• Aim a bow at the small gap below the iron bars

• Shoot arrows through the gap
  

Expected Result:

• Arrows should pass through the visible gap under the iron bars and hit the End Crystal, similar to Java Edition behavior.
  

Actual Result:

• Arrows collide with an invisible hitbox and do not pass through the gap, making it impossible to destroy the End Crystal using a bow from below.
  

Game Version:
Minecraft Bedrock Edition 1.21.132

Platform:
Android