Damian’s final delta

Well I went to Damian to get the Shaymin and final delta (delta Bulbasaur ) but when I went to my pc I had the shaymin but didn’t find the delta any help for this glitch?

It is a known glitch. " Note: Save before speaking to Damian, as there is a bug that seems to cause him not to give an egg to the player. This may only occur when the player’s party is full."

So I would recommend going back to Damian and savings before getting the legendary and the egg so that the egg doesn’t glitch out. Otherwise, I would say asking for a Delta Bulb in the trading section.

thanks for the help.