Aw, well. I'll see if I can find that. Wish I knew what triggered it. Thanks for the bug report!
Edit: Make sure if you get to the part where you're waiting for Tetrine, go to the train station and look at the boat several times.
probably entirely redundant now, but i persisted with the old version. during the section where trying to go to the station says 'waiting for tetrine', you can go and spy again which leads to the softlock. but if you look at the boat first it's fine. just thought i report back on that in case it helps. but since you've updated, probably not :D
anyways, i finished! didn't realise how close to the end i was :D great stuff, i really liked it. love the way you composed scenes visually. gave me some inspiration for how i can approach some game design in the future. good luck with the jam!