LB,
Never happened and I don’t think it ever will. People generally get mishloach manos from a bunch of different people and the givers should understand that. I think it’s unreasonable to expect a follow-up on every mishloach manos that you send (not saying you shouldn’t thank people, as they would surely appreciate it, just saying they shouldn’t necessarily expect it).
Funny story though, my wife and I once regifted a wedding gift (it was a challah board – we received two similar ones). A little while later the person who gave it asked my wife if we like it. My wife responded with something super smooth. I forgot exactly how it went but it was something like “Oh it’s beautiful…every week”. Everyone was happy