Moderator Note
If you are receiving this issue, update to 1.10.2 or higher.
Description: Server forgot to send required information to construct BlockEntity
java.lang.RuntimeException: Missing BlockEntity
at bqy.b(SourceFile:162)
at bqu.a(SourceFile:100)
at bqu.run(SourceFile:43)
at java.lang.Thread.run(Thread.java:745)
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is duplicated by
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Please anyone who know how to fix it please help me

@Salama: Revert to 1.10.0 in the Launcher for now.

Again, it seems to be failing to load a block entity, this time, a Chest facing the West. (Much like MC-103975, except the Chest was facing South.)
As seen with:
Description: Server forgot to send required information to construct BlockEntity
and
– BlockEntity missing instance data –
Details:
BlockState: minecraft:chest[facing=west]
Block coordinates: World: (2021,50,-38), Chunk: (at 5,3,10 in 126,-3; contains blocks 2016,0,-48 to 2031,255,-33), Region: (3,-1; contains chunks 96,-32 to 127,-1, blocks 1536,0,-512 to 2047,255,-1)

You closed my issue as a duplicate to this one. My server is unmodded and having this issue. (I run the server)
Brian

You also closed my issue as a duplicate. This was happening on REALMS with vanilla client.

Frick this issue mine isnt dupe

salma shall die

Can confirm this happens on 1.10.1 severs AND 1.10.1 clients. I have a redstone mechanism that crashes my client everytime I use it (a button attached to a T-FlipFlop attached to a bunch of pistons), but it works fine if I set the client to 1.10 (server still on 1.10.1). Vanilla client and vanilla server.

I always try to get on minecade then it crashes and puts a crash report on my screen

Please attach your crash reports to your respective tickets.

This Bug Has Been Going On For The Past Few Hours I Tried To Restart My Computer And I Refreshed My Servers And Tried Everything Please Give Me Instructions On How To Fix This.
Thank You

Run your client as 1.10 instead of 1.10.1 until they have this fixed. That will allow you to play till then.

It's another chest.
– BlockEntity missing instance data –
Details:
BlockState: minecraft:chest[facing=west]
Block coordinates: World: (2021,50,-38), Chunk: (at 5,3,10 in 126,-3; contains blocks 2016,0,-48 to 2031,255,-33), Region: (3,-1; contains chunks 96,-32 to 127,-1, blocks 1536,0,-512 to 2047,255,-1)

Thank You So Much Brian Biggs It Worked

THANKS IT WORKED IT REALLY WORKED
Reproducing on singleplayer with beacons http://pastebin.com/iDTsj1yb

This occurred in an UNMODDED VANILLA server. Crash report sent.

I got this problem on a realm. I can't go to a certain area or I'll crash. Definitely unmodded.

I tried deleting everything that had to do with 1.10.1, but it just came back when I opened the launcher. Can I stop the download of updates somehow, without killing my Internet connection?

@@unknown: In the launcher, select "Edit profile" and then change to 1.10 in the use version dropdown.

can u guys help me I cant join servers its crashes

My minecraft just crashed and directed me to this JIRA issue. I think this must be the first time I've had a crash direct me like this. I had an identical crash earlier, except that time it didn't give me an error message directing me to this JIRA isue.
Anyway, running a vanilla client connecting to a locally hosted vanilla server (both 1.10.1).
I'd like to note that this issue does not seem to be consistent. I've been building in an area away from my main base, and the game works just fine out there for hours on end. I come back to my main base to drop off mined material and pick up other stuff, then head back out. So I've been back to my main base 5 or 6 times in the past few hours, and I've only crashed twice. Both times it said it was due to a piston. While I have quite a few pistons around my base, I have two that are part of a pumpkin timer. My suspicion is that it is when the pumpkin timer ticks over that the crash happens, as that is fairly random. All the other pistons aren't moving. Nope, not them. I checked the co-ordinates of the piston that gave the error, and it is instead one of the pistons in the pumpkin farm, which are powered by the pumpkin switch.
By the way, what does "Resolved - Invalid" mean?

By the way, what does "Resolved - Invalid" mean?
This issue is caused by modded servers, modded servers are not supported so tickets related to them are resolved as invalid. See MC-103981 for the vanilla version of this issue.

Thanks for the explanation. If I might make a suggestion, this bug report doesn't mention anywhere that it is invalid due to being used on modded minecraft servers. The text directing to the other bug report specifies "singleplayer AND does not involve pistons". My crash is on multiplayer and involves pistons, which suggest that it is this bug, not the other one.
Given that the server is directly under my control, I can confirm that it is using the jar file downloaded directly from Mojang, and has not been modified. But it is getting this bug with pistons.

There have been cases using chests, although one had a repeating command block, and another even had an Ender Portal.

I've been having problems getting on this one server. I join for a few seconds and then it crashes, and it only happens on minecraft 1.10.1 . I'd really like having help with this problem.
@unknown, update to 1.10.2.

can anyone tell me why i have this problem i cant join anyserver except of my own server i have java edition please respond does anyone know why