[MC-103475] Ender Dragon will not spawn with Ender Crystals

Environment

Windows 8.1, Intel i5, latest Java, no mods, or Resource packs.

Linked issues

duplicates 1

MC-103497 End Dragon Does not respawn Resolved

Comments 2

migrated 2016-06-11T12:55:12Z

Please attach the crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt), otherwise we can not diagnose this issue.
For technical support please use the Mojang Support Center.

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migrated 2016-06-14T13:33:08Z

Issue is not Resolved, still can not respawn Ender Dragon. There is no crash report for this bug, no crashes for the last 7 months.