This bug report is a parity issue with Java.

This is a minor mistake of Java parity, but if platforms tend to be the same, this mistake should be fixed someday)

In the Java version, players swimming within 9 blocks of dolphins gain Dolphin Grace for 5 seconds.

In Bedrock Edition, the player simply gains a speed boost with no effect status.

How to Reproduce

1. Find or summon a dolphin.
2. Swim for the dolphin to follow you.

Expected Results

The player will receive the effect of dolphin grace (as in the Java version).

Observed Results

The player will simply receive a speed boost with no effect status.

Notes

On the bedrock version, the acceleration from the dolphin is much less than on the Java (almost imperceptible, unlike the Java).

Video

(How it works in java version)

Minecraft_Java_1.16.mp4

(How it works in bedrock version)

Minecraft_Bedrock_1.16.mp4