Custom underwater biome is not applied to the second split-screen player.

Partner Rank: 2

Summary:
The custom underwater biome is not applied to the second split-screen player.

Impact:
This will impact the following content:

• Monster of the Deep
  No workaround is found.

Repro Steps:

1. Download Monster of the Deep by Noxcrew
2. Run the command

   /tp 556 164 535
   

3. Join the second player with a second Xbox controller
4. Teleport the second player to the first player.
5. Observer the custom underwater biome for the second player is not the same as the first player.
   

Observed Results:

The custom underwater biome is not applied to the second split-screen player.

Expected Results:

The custom underwater biome is applied to the second split-screen player.

Screenshots/Videos attached: Yes