In the quest guide, It's written "Yellow Piece acquired in Blackview City. You will need both a Dull and Shiny key, which are found just below the Silver Rise Peak, and Silver Rise Forest"; Where in blackview city do I go to get it?
The Infiltration battle event is repeated if the healing station in the Fox hideout was the last used healing spot before blacking out (After completing the event)
I think it's a bug. Try deleting the game and then downloading it again, if that doesn't work, I'd suggest reporting this in the Troubleshooting section
Woah, I didn't expect anyone to wish me on here haha. Thank you so much! I honestly appreciate it, and I'm sorry for replying so late. I hope everything's been going good for you too!
I'm pretty sure you're not supposed to visit Jenny. Go to the underground city and talk to the dude (i'm sorry its been a while since i last played, i forgot a lot of the names)