multiplayer server

Put the summary of the bug you're having here
the server did not send the required information to construct blockentity
What I expected to happen was...:
Describe what you thought should happen here
it should have work after restarting the game
What actually happened was...:
Describe what happened here
it did not fix the bug no matter how many time I restarted it
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...try to open a popular server
3. ...