If you try to confirm the selected beacon effect, the interface closes but the effect doesn't get applied.
Environment
[14:12:58] [Server thread/ERROR]: Couldn't set beacon
java.lang.IndexOutOfBoundsException
at io.netty.buffer.EmptyByteBuf.readInt(EmptyByteBuf.java:470) ~[minecraft.jar:?]
at hb.readInt(SourceFile:639) ~[minecraft.jar:?]
at re.a(SourceFile:1049) [minecraft.jar:?]
at lz.a(SourceFile:55) [minecraft.jar:?]
at lz.a(SourceFile:8) [minecraft.jar:?]
at ie.run(SourceFile:13) [minecraft.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_55]
at net.minecraft.server.MinecraftServer.y(SourceFile:575) [minecraft.jar:?]
at pk.y(SourceFile:303) [minecraft.jar:?]
at net.minecraft.server.MinecraftServer.x(SourceFile:530) [minecraft.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:446) [minecraft.jar:?]
at java.lang.Thread.run(Thread.java:744) [?:1.7.0_55]
Duplicates MC-59533