Dimensions or Services it affects
Your in-game account name
How often it happens
Occationally, during lag spikes and using sort
Any screenshots or videos showing the bug
When the occasional lag spike occurs, using the “Sort” function can override certain items with other items, causing them to be “duped”. It only happens in Survival that I am aware of, and it only sometimes works. Other times, it just puts it back in its original state.
I believe this is because of Anti-cheat, which tries to put back items in their original state, but overrides them in these lag spikes because the server does not know what to do during these spikes.