Steps to Reproduce:
-Have the host open a world.
-Join the host's world as the client. (2nd player, separate device same model)
-Have the host place 2 chests side by side in front of the client.

Conclusion:
The hosts screen shows connected double chest.
The clients screen shows unconnected twin chests side by side.
Double chest is finally seen by client, once client leaves server than reconnects to hosted world again.

Please fix, this has been a problem for a LONG time and developers have been scratching their heads ever since.