Clients launcher large number of spam [xx:xx:xx] [Server / Client thread/ERROR]: Item entity xxxxxx has no item?!

Clients launcher large number of spam:
[xx:xx:xx] [Server / Client thread/ERROR]: Item entity xxxxxx has no item?!

Reproduce video:
https://www.youtube.com/watch?v=jvLk_PqD0lY

Reproduce steps:
1. Transmitter settings:(Launcher Visibility = Keep the launcher open)
2.Use Silk Touch damage Frosted Ice.
3.Saved back to the menu screen.
4.Enter the world again.
5.Observation of launcher.