Seems to only effect moving entities. Villagers in minecart left stationary don't despawn minecart hoppers left stationary don't despawn. I believe this has something to do with entities crossing chunk borders. Also my world has a button and a piston on a chunk border, the button forgets what it triggers until I replace it and the piston disappears periodically (suspect because it exists In two chunks when it's fired) I suspect a minecart track looped only in one chunk would not despawn the minecart or entities contained in one chunk. Will test in my world and report back....
Seems to only effect moving entities. Villagers in minecart left stationary don't despawn minecart hoppers left stationary don't despawn. I believe this has something to do with entities crossing chunk borders. Also my world has a button and a piston on a chunk border, the button forgets what it triggers until I replace it and the piston disappears periodically (suspect because it exists In two chunks when it's fired) I suspect a minecart track looped only in one chunk would not despawn the minecart or entities contained in one chunk. Will test in my world and report back....