Has the mystery of Disappearing Pokerus ever been solved?

My question may not be answerable, but here’s a big story:

So, after resetting all the EVs I had randomly put on it when I was 14, I infected it with one of my Pokerus-infected mons and went straight to the grind. It’s been fully EV trained now, but I tried to use it to spread it to another Pokemon. What happened is beyond bizarre.

I went to spread it to my 4IV Zorua I had captured in afailed shiny hunt. The ‘Rus spread, but it disappeared from Starmie entirely. Yes,entirely. There wasn’t even a mark saying it was cured. It was gone completely. I was even able tore-infectit.At no point during all of this did I turn off the system.

That’s not a big problem, because it spread and it was already trained, but WTH happened?? Can anyone relate? I found a coupleGameFAQthreadswho had several people claim similar experiences in X&Y, but there was no cause found. Four years later, does this still occur, or no longer? Is it an officially recognized glitch? Can anyone else even relate in any game at all?

Hope everyone had a Merry Christmas!

Pleaselog inorregisterto add a comment.

That’s not a big problem, because it spread and it was already trained, but WTH happened??

X values of 0 are not legitimate, since upon being “cured” the Pokémon would appear to have never had the Pokérus at all.

sourcealso see thesimilar Pokebase question

Can anyone relate?

Apparently the person who asked the other Pokebase question and the person who edited Bulbapedia can relate.

Four years later, does this still occur, or no longer?

Bulbapedia still says it occurs, so I’d think yes.

Is it an officially recognized glitch?

nosource