Removing user default key DVTDeviceVisibilityPreferences fixes issue. defaults delete com.apple.dt.Xcode DVTDeviceVisibilityPreferences I had a wrong value type under DVTDeviceVisibilityPreferences key. String instead of Integer. Observed <key>2DDE32D1-C291-4C3A-A76F-2878C9F57F61</key> <string>1</string> Should be <key>2DDE32D1-C291-4C3A-A76F-2878C9F57F61</key> <integer>1</integer>

Thank you Ed, Issue report is created: FB15300340 FYI: Issue also reproducible when using Xcode 16.1 Beta 2 (16B5014f).