Re posting from here

Can confirm that this still a issue.

NeoForge Version: 20.4.237
Mod Version: 0.10.24.802

What kind of wrench is that?

Dire's Wrench, a Ferricore Wrench.

So I was going to add a bit of code that prevents rotation of half of the chest, but that would cause the exact same issue on create contraptions when they get disassembled in different rotation than the one they were assembled in as well as potentially issues with using double chests in structures and I would guess likely more than just that.
Potentially I could add a config to prevent certain items from being able to interact with double chests, but that feels a bit odd for such a corner case and if those items happen to have a different functionality that's useful with double chests that would stop that as well. Probably better handled by the other items when they do rotation they should have config with definition of blocks they are not supposed to rotate.
Anyway this is such a corner case and the dupe here only happens when at the same time dropPacked is set to true so I am making a decision to leave this as it is.