Thanks.@theSLAYER
I am sure I used the latest version and I played through the whole story.
The girl in Pokémon center didn't say "The Gym leader knows how to use" when I picked up the Eon ticket from her.(if normal she will say that)
I think that use WC6 file cannot enable the event maybe.(perhaps there is a little bug in the latest version PKHEX)
Yes I finished the Delta already.
Could you send to me that old version (if you still have it)
Thank you!