Missingno., messing up with Game Freak since 1996.Oh, Missingno, will your glitching antics ever end? Seems like Bank will prevent Missingno from being transferred... but Missingno isn't going without a fight. Though Bank has prevented Misisingno from transferring (calling it a "Problematic Pokemon"), if you have any other Pokemon in the Box with it they'll transfer but with one minor hitch: their names have been shifted by one. The first Pokemon in the box will be named "MISSINGNO-", the Pokemon next to them will have that Pokemon's name (be it a nickname of the Pokemon's species), and so on.
Also some sad news, a glitched Mew won't transfer, only ones received via the Event that gave it out. :(
You'd think they'd have taken it into account, but no.
(I wonder if this happens with other glitch Pokemon, and what happens with unstable hybrids)