Same here. Same Xcode Version, same problem. Simulator works fine. I have tried it with two different fonts and switched simulator from iPhone 13 to 14. Nothing works, just this strange symbol.

I have identified the problem yesterday. It's what Scott wrote. No Bug. The "problem" is, Xcode runs in English language and so does the Keyboard. Solution: Click on your App name in the top middle from the Xcode window next to the current simulator. A dropdown menu will appear --> click "Edit Scheme" Change the App Language & App Region to German and Germany. You have to do that in the sub-menu "Run" & "Test". profit! OR Top Menu --> Product --> Scheme --> Edit Scheme --> Point 3 from above --> Profit! Everything runs smoothly :-)