Egglock error (delta pokemon)

hay I wanted to start an egglock and when I finished making a few eggs using the generator in game I try and start one and it gives me an error code when I look into it I find out that error is due to a bad egg so I get rid of all the eggs and go one by one once I get to the deltas I wanted to add the game crashes on any of them can u not use delta mons as eggs you make?

A lot of deltas will crash egglockes. Wait 'till this problem is fixed in a future patch.

ok thx just wanted to check