Importing new delta pokemon eggs and game crashes

I’ve been trying to do an egglocke with some of the new delta pokemon in it. I generate their eggs go to the file and do the rest but then when i reached the part of the beginning where it asked me if i want to import my eggs from the egglocke testing file it crashes on me saying the script is hanging and when i try going back to that save file it says its corrupted and I need to start over. I know its because of the new delta pokemon because i imported one with delta bulbasaur and it worked perfectly unlike when i tried with delta larvesta. Is this a bug or am i doing something wrong?

It might be a bug but could you screenshot any/all error messages that you get and also try comparing the format of the details of the delta bulba and delta larvesta and screenshot that?