MC_Emsi

I just tried to catch Beldum in the Byxbysion Grotto. Of course I saved before battling it. After a few tries I gave up and wanted to take a new team. I thought that I already reloaded so I saved a second time after choosing my team but when I came back I couldn't activate the event anymore. I came to the conclusion that I forgot to reload before taking a new team. (my last backup was about fifty hours of playtime back) Question: Is there any possibility to activate the event a second time after killing Beldum?