Previously explored Ice Biome chunks regenerated incorrectly in existing world

This is an existing Bedrock world that has been played for over 100 in game days. After updating the game, I noticed chunks approximately 500 blocks away from my base loaded incorrectly. These chunks were previously explored and did not look like this before the update. The affected area is an Ice Biome where terrain appears corrupted or regenerated incorrectly, with mismatched chunk borders and broken terrain generation. I have been to this location before, and the terrain was normal prior to the update. This appears to be world corruption or chunk generation issues caused by an update.