Describe the bug
The backpack changes his idea when a player use the button (from another mod) to sort his bp.

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To Reproduce
Steps to reproduce the behavior:

1. Open backpack
2. Click on sort
3. See error

Expected behavior
The backpack id will have changed

Screenshots
If applicable, add screenshots to help explain your problem.

Versions
Last one

When you say ID I am assuming it's UUID, can you share a video of what's happening to you because I am sure I can't recreate this one. Also double check that you are sorting using sophisticated sort button / keybind not using some other mod.

closing given no additional info provided