Minor spoiler I guess:

I'm at the part where you have to find out the combination to the gate to the pumpkin patch. I realized that I had to talk to Eileen to find out how many times she beat Jessie, but now I can't find her. She used to sit by the statue but after digging up Carol I can't find her anymore. I can still progress (was looking for this bug and found the code) but it doesn't feel right. Have I just not found her? Feels like I've looked everywhere.

I can't quite recall, but as far as I remember she "hides" somewhere. I had the same problem and I found her somehow, but as said... sorry, I can't recall where she went :(