[Xbox X] Couch Co-op Bug - Currency vanishing when moving >20 stack from Stash

Description:
I have found a reproducible bug in Couch Co-op mode where currency disappears if moved in bulk. When Player 1 holds 'Y' to move a large stack (e.g., Exalted Orbs) from the Currency Stash to the inventory, only 20 orbs goes into Player 2's inventory instead of going into Player 1's.
Any amount exceeding the 20-stack limit vanishes completely from the game.

Helpful Information:

Platform: Xbox

Model: Xbox Series X

Time of incident: January 2nd, 10:20 PM GMT+8

Gateway / Location: South Korea

Error messages: No error message. The items simply disappear.

Crash Type: Not a crash. It is a data/inventory synchronization issue.

Reproducibility: 100% reproducible (Happened twice today).

Connection: Wi-Fi