Additional information: In the latest testing, I conducted over 25 consecutive uses of the common event [CardReward_XXXXX] to obtain cards without using the skill tree to learn skills. The bug still occurred under these conditions.
Furthermore, I tried the same operations in a sample project, and the same bug occurred.
The operation process is as follows: First, obtain cards using the common event [CardReward_XXXXX]. Obtain at least 3 cards, including one duplicate card. Then, directly create a new deck and proceed to edit that deck. This sequence triggers the error.