Pressing "next" closes an item and auto-selects another item, but some users confuse this for a "done" button and press it then click on another item to discuss (which has the side effect of marking the auto-selected item as done).
It may be possible to improve the UI here to make it more intuitive, but as a crutch:
If the user advances using the auto-advance (right arrow / "next" button)
Then manually selects another item within X seconds (2? configurable?)
Then the selection should move to the new item without marking the auto-advanced item as done
Pressing "next" closes an item and auto-selects another item, but some users confuse this for a "done" button and press it then click on another item to discuss (which has the side effect of marking the auto-selected item as done).
It may be possible to improve the UI here to make it more intuitive, but as a crutch: