Describe the Bug

Using "ftb backup" to load a save will clear the items inside the sieve.

Reproduction Steps

1.Throw the gravel from the inventory into the sieve.
2./backup start
3.Load save
4.There is no gravel in the sieve or inventory（they disappear）.
...

Expected Result

The gravel is left in the sieve

Screenshots and Videos

No response

Crash Report or Log

No response

Operating System

win 10

Mod Version

1.20.1-1.8.1.e-22

Minecraft Version

1.20.1

Forge Version

43.4.2

Other Mods

No response

Additional Context

No response