Lithium 0.10.4 fixes a critical issue that causes heightmaps to store wrong values when placing or breaking blocks. It might have affect beacons, mob spawning and more. After fixing the bug the wrong values will still be in the world save. If you notice wrong heightmap behavior in some locations, placing and breaking a normal block (e.g. stone) above the location will update the heightmap to the correct value.

Fixes

• fix: combinedheightmapupdate always using y & 15 as height causing incorrect heightmap

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