World Blend Snapshots

Fixed a crash when blending chunks that have not had their biomes generated yet.

Note that it's possible for the crash to continue even after removing the mod. If you want to remove the mod later, I would recommend using a tool like NBT Studio and fixing the chunks manually:

• 1. Open the whole world folder
• 2. Expand all "region" folders in each dimension
• 3. Click the "Find" icon in the toolbar
• 4. Type in "blending_data" (without quotes) and click Find All, which will select every "blending_data" tag in every chunk
• 5. If any tags were found, click the "Delete" and then the "Save" icon in the toolbar

Initial version.