Closed scam or a bug

[ChiLL]

I HAD A ORANGE IV LILLIPUP AND I LOGGED OUT WITH IT IN MY TEAM, WHEN I CAME BACK, THE LILLIPUP'S IV'S WERE CHANGED TO GREEN!!!
HOW IS THIS POSSIBLE? please help me im so confused and mad....sry if its kinda rude

 

[Groot]

prolly it got replaced with some other lillipup from storage, did u check storage?

 

[ChiLL]

yeah, none in the storage

 

[ChiLL]

so what to do now i didnt even sell any poke to prof ots a gltich pls check logs

 

[Mike]

its highly unlikely that a random pokemon would suddenly have its IVs changed.
you did however sell an 84% lillipup this morning, so yeah this definitely looks like a poor attempt at a scam.