Has it ever happened to you?

That optimistic "haha" at the end...

It hasn't happened to me. But the other night when I was merging Brave Lucina, I accidentally switched the order and destroyed my perfect IV Brave Lucina. xD

I mean I'm personally against merging limited units like that for such minuscule boosts personally but I think the worst I've done is mix up the order of my 4-star merges so my Lillina has the wrong ivs for the moment but she's only like +3 or 4 so I have room to wait for a better set.

I also fucked yo once and pulled a 5-star corrin(m) after I had one at lv 40 and I ended up un-hearting and sending the wrong copy home xp

That didn't happen to me, rip

My mistake was with Inheriting Skill
I had a +spd Nino who I foddered for Draw Back
I mistook that one for a bad IV dupe and had to wait for a month to get another one that isn't +def or +hp, keep pulling those boons for some reason

Thank god I always double check when inheriting and merging units.