Pokemon Sole Silvewr Pokemon-How Often Is Manaphy Egg Lost In Transfer?

Pokemon-How often is Manaphy Egg Lost in Transfer? - pokemon sole silvewr

I have completed the Manaphy mission in Pokémon Ranger. I was only 1 / 2 way through the game again if I took out the only reason to have Manaphy egg. However, I have heard many people have lost the egg in the transmission. That's what I want answered:
1. It has happened to you before?
2. You know how often does this happen?
3. How can I prevent this?
4. If my egg was lost in the transmission, I can trade or even PHION Manaphy (not applicable as amended)?

I also know that the egg is, the type of PokeMart, so if you want to say, if you somehow lost, not because I know that.

Thank you!