Minecraft Version

1.19.2

Forge Version

43.4.0

Mantle Version

1.10.36

Tinkers' Construct Version

3.8.3.39

Describe your issue

With Multi Mine installed the Exchanging modifier becomes broken; it will attempt to swap the first block out but drop a second item from your offhand, and the second block broken will just break both blocks.
In singleplayer the behaviour is slightly different but still broken in a similar way.

Crash Report

No response

Other mods

Multi Mine

Tried reproducing with just Tinkers?

Yes

Performance Enchancers

None of the above

Searched for known issues?

Checked pinned issues, Searched open issues, Searched closed issues, Checked the FAQ, Checked the in game books

Also reported on the Multi Mine tracker: AtomicStryker/atomicstrykers-minecraft-mods#519