World Conversion Completes But Incorrectly (XBOE to XBOX BR)

Seed: -8434814575835167583

This world was originally created on the Xbox One Edition. The conversion to the new Better Together (bedrock) edition completes. However, the world is incorrect. There is a large body of water that cuts into the area surrounding the starting point. Other areas are incorrect as well.

I have attempted to re-convert after updating, playing, and saving the game again in the Xbox One Edition in case the update changed the save format. This did not work.

Original Xbox
Xbox Insider Program

From:
Updated Version of Minecraft XBox One Edition
Size: 256.6MB

To:
Released Version of Minecraft (Bedrock on XBox One)
Size: 154.9MB