Ok, I've jumped into the files a bit, and I've figured out how to find the save files. Surprising how easy it is... I'm almost embarrassed by the fact that I didn't know where they were prior to ten minutes ago.Yes, it seems to be a bug, some reason it is not triggering the gallery. Could not hurt to upload the save, maybe one of us can figure out how to fix it for you.
Quick-2 is the save I made just before Autumn's first event.
Quick-1 my complete up-to-date current-game save.
I'm not really sure about the save editing and source editing people have spoken about, but hopefully uploading these two will help clarify what the bug is for people.