A whole chunk loads in my Ocean house and ruins the build

When loading my survival world into 1.14 Pre Release 1 from the previous snapshot, there is a massive new Chunk loaded in right in the middle of the house, world was loaded in from previous 1.14 snapshot, screenshots of the uncorrupted world and the corrupted world provided

Steps to Reproduce:
1. Load a world from snapshot 19w14b (or any previous snapshot)
2. check if your home has been invaded by a massive chunk
3. if not reproduced check screenshots