Crash when mining Uranium about grim-pack

[drakray]

and this when I tried to reconnect

java.io.IOException: Une connexion existante a d󠪴re fermꥠpar lӨ��distant at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[?:1.8.0_92] at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) ~[?:1.8.0_92] at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:1.8.0_92] at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[?:1.8.0_92] at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[?:1.8.0_92] at io.netty.buffer.UnpooledUnsafeDirectByteBuf.setBytes(UnpooledUnsafeDirectByteBuf.java:446) ~[UnpooledUnsafeDirectByteBuf.class:4.0.23.Final] at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881) ~[AbstractByteBuf.class:4.0.23.Final] at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:225) ~[NioSocketChannel.class:4.0.23.Final] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119) [AbstractNioByteChannel$NioByteUnsafe.class:4.0.23.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [NioEventLoop.class:4.0.23.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) [NioEventLoop.class:4.0.23.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [NioEventLoop.class:4.0.23.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [NioEventLoop.class:4.0.23.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) [SingleThreadEventExecutor$2.class:4.0.23.Final] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_92]

[drakray]

Connecting with another account work
Destroying Uranium in creative don't crash
Droping Uranium Ore on the ground is fine too

I used MoreItems's Obsidian Pickaxe, with Unbreaking, Fortune, Efficiency and Mending, which also crashed my other player
Trying to mine Uranium with another non-enchanted pickaxe does not work, the Uranium respawn

EDIT: deleting the player file fix the problem(by losing everything, but still)

When I go back to the place I broke the U, where it seems to have dissapeared, they are still there

[drakray]

The bug is caused when breaking a Uranium Ore with a pickaxe(diamond) enchanted with Efficiency 5. The block seems to be absent, but is only invisible. right-clicking on the block make it reappear. Walking ON the invisible block make the crash.

[drakray]

going in creative with a non-crashed account and "cleaning" the Ore block make the crashed account able to connect