A Microsoft file hosting and synchronization service.
Hello PeetLückhoff,
My name is Oluwatosin and I’ll be more than happy to help you with your query." This is a user-to-user community forum. We do not have access to your account.
I'm sorry to hear that you're not able to unhide the folder.
When you see the folder in 'Search Everything' Bar, did you notice the ellipses (...) button next to the folder name?
If you can see the ... button, click on it and select More action or Manage access.
Select Show in shared view or unhide from shared.
These steps should unhide the folder and make it visible again in the Shared with me view.
I hope this helps! Let me know if you have any questions.
Best regards, Oluwatosin.