
Diablo 4 has, once more, had to disable trading due to a duping bug—the third time in one year, albeit just barely, as announced on the Diablo 4 forums by community manager PezRadar:
"We will be disabling trading in Diablo IV while we investigate a possible duplication issue. We apologise for the disruption and will provide updates on when we will have trading available again once we further investigate and identify any issues we need to resolve."