"Item Price differs" popup recieved on Gwennen gamble in own hideout

Bug Report ID: #4,063,992,649

After refreshing Gwennen's offered item gambles, I received the "Item's price differs from the one you traveled to this hideout for" alert. The popup persisted for the item consistently even after re-opening the gamble interface. After acknowledging the alert, item was purchasable as normal.

On further testing, the popup appears for any belt I try to purchase from Gwennen's gamble. I believe the last trade item I purchased was a leather belt.