Hi,
I just finished the event in Sashila (use the Claydol to return GDC after beating ---) but when I want to go to Route 9, I must go through the events of the story once again. (saving Reina after she is kidnapped by team Bladestar)
The event plays by just going one step right, and I can return to the desert by re-using the Claydol.
I hope I gave enough details (I could use an old save but I don't know when the bug started...).
Game.rxdata