Here I thought we left this glitch nightmare in Gen 1, but people claimed to have recent sighting's in in Kalos, specifically Lumiose City!!
If you stand at just the right angle in front one the shops entrances there, you can see a "silhouette" of the virus floating there, just floating....
I'm completely convinced that this is the reason for the infamous "Lumiose save glitch", with Gen 1 long over with we thought we had seen the last of this floating disaster of a glitch....but think this just the beginning.