Glad you sorted it, unfortuantely some stuff is a bit buggy on mobile.
Go to the kitchen during lunch or dinner and do one of Jen's clothing events again, the unlock is a bit bugged but I put a failsafe in that should run if you do those events. Let me know if you can't get it to work.
Thanks for providing the save. I think I just forgot to set that event as viewed once you leveled her up, and you just happened to have the criteria for it to unlock at the same time. You can fix it yourself by entering the following in your browser console (F12) then navigating to another room:
Code:
SugarCube.State.variables.lydiaEventObj.storyHike.viewed = true
Do not play the event, because it'll screw up some stuff!
Just tested and it does let you play multiple times. Make sure you have the bugfix patch installed.
Make sure you've actually played the previous story event, it might be marked with a tick even though it hasn't been played.