Just wanted to update you!
I'm trying to replicate the problem on my end (and my power keeps going out, so ofc that's making it difficult! LOL) but haven't figure out how it happened just yet!
(A picture of all the key items you can acquire in the game.)
I've tried triggering the cutscene with no additional items, with just the fishing rod, the Guidebook, and also the key (thinking maybe the inventory thinks it's full when it's not...?) but no luck so far. I've also reloaded the game a bunch, opened it and closed it and tested it that way as well and still can't get it to break.
I'm currently using a PC, are you also on a PC or a different operating system?
In the meantime, I'm also working to see if I can just send you a save file that you can load from that already has the Peyton flower in the inventory.
Sorry for the wait and thank you for your patience!!