System status has been showing App Store Connect App Processing - Outage since 5:15pm on 13 Jan, 2021 (over 24 hours without being fixed!) check this link [https://developer.apple.com/system-status/] Apple's problem

Hmm, talk about unintuitive interface - poor, UX

Swift 5 This will highlight the pickerView row to whatever you set 'tintColor' to func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {    pickerView.subviews[0].subviews[0].subviews[2].backgroundColor = pickerView.tintColor;

I am using Xcode 12.1. No errors, everything builds fine. But as soon as I added another ViewController - the IBDesignable on the previous controller doesn't work and it just shows 'designables updating' all the time. I have cleaned, closed down,, re-opened, re-built countless times. I deleted derived data (as suggested elsewhere), no difference.

Xcode 12.01, iphone 8 IOS 14.01.. This problem STILL happens... 3 years later and apple haven't fixed it.! Everything works, connects and debugs to the phone wirelessly. But...if you begin debug while the iPhone screen is locked, xcode says the iphone is locked. Unlock the phone, xcode throws a fit and still says iphone is locked... What a crock. go into xcode->windows>devices and simulators... and it has removed my phone.. nice one!... time is precious..