I sold an item on 24th of October, and it was delivered on 4th of November. The buyer has already given me positive feedback but in my orders when I see that order, it is still appearing as not delivered. Would it affect anything? And why is it so. Can anyone answer, please?

It is now past the time when a buyer could open a not received, or not as described case, ebay only allow 30 days. An honest buyer who has received their purchase would not take advantage of tracking not updating.