1.20.6 Stacking Issue

[SirBongo]

Minecraft Username
Sir_DB

Describe the bug
If you stack swords using the /stack command, and put them into a chest they do not show that they are stacked.

How did this occur
Stacking training swords, and putting them into a chest on 1.20.6

Expected behavior
They should still show that they are stacked.

Screenshots

Minecraft version:
1.20.6

Additional context
I have some mods like Figura, and Sodium but nothing that should change the fonts + it still shows the stack amount for other things.

[Kowaman]

Cannot replicate on 1.20.6 Fabric

[Adelemphii]

Can replicate, items not remaining stacked when clicked into inventories.

Version: 1.21 Fabric using ViaFabricPlus to connect as 1.20.6 client-side.

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