We encountered the same problem:
The file can be reached using similar replacement, but this will cause image errors.
Not only the triplets mission, but also after the main story ends.
I guess this location is definitely not finished. The giant tree monster, the fairy kingdom, and the cave in the forest cannot be reached. Similarly, some old maps are not completed.
Due to the hard bug, many people no longer talk to me. You can check one village at a time.
Soft lock warning: Don't talk to people such as the dragon messenger. If you inherit the archive,You will be transferred to the dark map and soft locked.