Did this solve your issue ? If so, don't forget to close the thread. If not, please explain what the problem is.

Did you solve your issue ? If not, please explain what the problem is and provide some answer to the questions.

Error is bySettingHour : 90 Should be bySettingHour : 9

Search everywhere in your code for singleStackView.isHidden And see if you set it to false elsewhere.

Have you set constraints to position the tableView ? You should, it may just be offscreen. Have you populated the tableView with content ? You need to define the required dataSource and delegate func for the tableView. And make sure delegate and datasource are properly set. Otherwise, an empty tableView shows nothing. To better see what happens, select tableView in IB ; in Attributes Inspector, set its view bg color to red. And check if you see something.

Maybe the error message does not give the root cause of the problem. Could you try generating with Xcode 11 at least ? As you noticed, it works on newer versions: This is running in the new Xcode version

They used to be simple scroll wheels  If you select the picker in IB and look at Attributes Inspector, you can select Wheels for preferred style instead of Automatic. That will give you the style you were accustomed with. To select another iOS version in simulator, just select the appropriate simulator. In Xcode, I think you have to return to an older version of Xcode.

A preferences screen shown at run time Is it your preferences screen or a system one ? If yours, could you give some details: where and how are those controls defined ? show the code if any

I tested in playground (Xcode 12.4). Works with 128. Fails with 129, with a different error message: Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected character b at line 1" UserInfo={NSDebugDescription=Unexpected character b at line 1, kCFPropertyListOldStyleParsingError=Error Domain=NSCocoaErrorDomain Code=3840 "Conversion of string failed."

What is the exact text of your message ? Take care, you have some confidentiality obligation when dealing with beta of OS. Wait for 14.5 release and post the message then.

Got the same problem on Xcode 12.4 and 12.2. Just filed a bug report : FB9038195 BUT I opened the project with Xcode 11.3. Works Ok. Closed it Reopened in Xcode 12.4 IBDesignable shows without issue…

So try to rewrite the post, without the mention of beta, but saying that you hope this will be in the next release. And see what happens.

You should file a bug report (at least against documentation, requesting to mention the limit), with the simple code eskimo has provided and the 128 limit. Please report the FB number and don't forget to close the thread.

I copied the full code in playground (after properly editing). No such error. What is the exact and complete message you get ? Are you based in Fort Smith ? 😉

No, that should not do this, you have a design, error somewhere. Could you show how and where you do the animation ? On which event ? Is it when you select the cell ? Here is an example (for a collectionView, but transpose directly to tableView cell: func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { selectedCollectionItem = indexPath.row let cell = collectionView.cellForItem(at: indexPath) UIView.animate(withDuration: 2.0, delay: 0.0, options: .curveEaseOut, animations: { cell?.layer.zPosition = cell!.isSelected ? 1 : -1 cell?.transform = cell!.isSelected ? CGAffineTransform(scaleX: 1.5, y: 1.5) : CGAffineTransform.identity }, completion: { (done) in cell?.transform = CGAffineTransform.identity self.performSegue(withIdentifier: "SomeSegue", sender:self) }). // I segue once animation done }