Yeah, I realized the first part of my comment was wrong, but I'm still running into the cottage issue. Jessica doesn't appear as an option when I go to the cottage so I guess I might just have to go to an older save/restart?
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Older saves won't work unless the issue is that someone has been tampering with your save file. You're either running an out-of-date version (you can only conquer the Cottage in v0.21.3) in which case you should update, or you need to completely re-download the game from an official source and not install any translations, modifications or patches.