I have seen this error when switching away from unarchiveTopLevelObjectWithData (data) to secure coding for a nested object graph. In my case the useful information came before this, because it listed types which I haven't included in my list of valid classes, like NSNumber, NSString, etc… let classes: [AnyClass] = [KBGObject.self, KBGPath.self, KBGRect.self, KBGText.self, NSString.self, NSNumber.self, NSArray.self, NSDictionary.self, NSData.self] let decodedChilds = coder.decodeObject(of: classes, forKey: CodingKeys.childs.rawValue) as? [KBGObject] Hope it helps Klaus

I have the same when using a standard toolbar item within a toolbar, and Apple Pencil hovering over it.

To answer my own question: https://developer.apple.com/support/roles/ So, indeed developers have only read access to builds, and can not add the test information when uploading a build. So, it's writing an email to an App Manager each time, who has a lot to do and has to copy the information from the devs, which usually happens way after most testers have already installed the build. This is not a good workflow, to put it mildly.