There is a huge bug going around where eggs are taking the place of Pokémon in gyms which does not make sense because Pokémon are supposed to be the ones that defend gyms from takeovers. Recently trainers have been somehow putting in eggs in place so that no one can take over the gym.
Because the egg does not have a set of attack moves, nor cp or anything like that, the game doesn’t allow for gyms to be taken over. Here is what the bug looks like:
Yukichuu on Reddit claims that it’s not a bug and it’s indeed a hack meant to throw everyone off:
It’s an exploit / hack. I saw that one Post on the front page and everyone thinks its a bug…
If you need proof i can post links of the Forum Post by the Person who made the exploit puplic. Please report every Trainer with an Egg in a Gym
Has this bug effected any of you? Let us know your thoughts in the comments below.