[MC-125279] Some trees have ores as leaves

I generated a new world and I spawned next to a forest, I turn around and see that some trees generated with coal ore instead of leaves.

Environment

Windows 10 Pro, Java 8

Linked issues

duplicates 1

MC-125807 Block ids are inserted wrongly into chunk section block palettes Resolved

Attachments

Comments 2

mxblue28 2018-02-14T21:30:47Z

Please provide seed and coordinates.

migrated 2018-02-18T01:34:33Z

Please also force a crash by pressing F3 C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/guides/finding-minecraft-data-folder]) here.