Widgets not working with TestFlight since Xcode 12 beta 3

Swift
Known Issues
Widgets may crash when built for release. (65862827) Workaround: Set DEADCODESTRIPPING to NO in the extension target’s build settings. When you upload the application to App Store Connect, also unset “Include bitcode for iOS content” in the App Store Connect distribution options.

• Set DEAD_CODE_STRIPPING to NO

• Disabled bitcode when uploading to AppStore Connect

• Installed on iPhone 11 running Public Beta 3 (via TestFlight)

1. Make sure that you use Xcode 12 beta 4 and iOS 14 beta 4 on your devices.

2. Make sure that you have placeholder(in:) implemented. Make sure that you don't have placeholder(with:) because that's what the previous beta of Xcode was suggesting with autocompletion and without that you won't get your placeholder working. I think this whole problem is caused by the WidgetKit methods getting renamed but that's another story.

3. As per the release notes, you need to set "Dead Code Stripping" to NO in your extension target's build settings. This is only necessary for the extension's target. When uploading your archive to the App Store Connect, uncheck "Include bitcode for iOS content".

4. Delete your old build from a device when installing a new beta.

Code Block swift
struct Provider: IntentTimelineProvider {
  typealias Entry = ScreenTimeEntry
  typealias Intent = ConfigurationIntent
  func placeholder(with: Context) -> ScreenTimeEntry {
    let entry = ScreenTimeEntry.sample
    return entry
  }
  public func snapshot(for configuration: ConfigurationIntent, with context: Context, completion: @escaping (ScreenTimeEntry) -> ()) {
    let entry = ScreenTimeEntry(date: Date(), configuration: configuration)
    completion(entry)
  }
  public func timeline(for configuration: ConfigurationIntent, with context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
    let currentDate = Date()
    let entries: [ScreenTimeEntry] = [
      ScreenTimeEntry(date: currentDate, configuration: configuration)
    ]
    let timeline = Timeline(entries: entries, policy: .atEnd)
    completion(timeline)
  }
}