@Liam: The first few snapshots completely corrupted the chunks when this bug happened. Maybe try with a new world or with a backup from 1.8 or 1.7?
@Colm Overy: Tried that, seems to be the issue. Adjusted the debug report accordingly. Thanks!
@Liam: The first few snapshots completely corrupted the chunks when this bug happened. Maybe try with a new world or with a backup from 1.8 or 1.7?