Thanks Revive, I tried to do some testing with the setting the coin item on a brick and making an event for it to spawn when activated, but the same issue regardless with your fix.
EDIT: I also edited the .txt files that determine which items are going to be used for each slot, and enabled the Coin(Copper) item in every .txt file, but still the same issue.
Provided a new console log with trace enabled as well.