Hey! i thought you would like to know that i have solved this issue!!!
My game may have glitched out the first time i went up, hence the issue with the scene not loading
Within the saves code, there's a string (<string>Summit_event</string>) that was added, this allows the game to recognise that the event has happened! All i had to do was remove this line of code and go up to the summit again!
This was suggested by a user on discord (Name: Vibel (i wont add their user number because i'm not sure if i am allowed to)) Thank you so much for your efforts, and i hope this knowledge will help you with other people that have similar issues to mine!