Summary:
Some mangrove roots replace mud instead of becoming muddy mangrove roots. This can be seen by examining the roots in the mangrove swamp biome (you can use the spectator game mode).

Steps to reproduce:

1. Find the mangrove swamp biome.
2. Consider the many roots of mangrove trees.

Observed results:
Some mangrove roots replace mud instead of becoming muddy mangrove roots.

Expected results:
Mud will be replaced with muddy mangrove roots instead of regular mangrove roots.

Image:
Bedrock


Java