I tried to set on the UITextField class, with         DispatchQueue.main.async { UITextField.appearance().autocapitalizationType = .words }  in viewDidLoad  but did not succeed yet.

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I also tested in MacOS 12.3.1, Xcode 13.3.1, iOS 15.4 simulator. Works OK. Did you reboot the Mac, in case ?

For the first part of the question, please show code.

I tested on MacOS 12.3.1, Xcode 13.3 (not 13.3.1) and iOS 15.4. Does work. I will try on 13.3.1, in case.

@Raphael95 I just tested your code. It scroll. Which versions of Xcode, iOS ?

If you don't show code, it is impossible to say. Which version of iOS ? And tell precisely what value you get, what value you expected.

Thanks for the feedback. You can close the thread now on the correct answer.

There is also the Editor menu > Preview

Yes, post your mail here please.

Working with someone since a year is not enough (in my mind) to create absolute trust… Can you meet them in person, not remotely ?

If you wanted to remove from self.trades, you should: find what is the position in trades of the section/row you remove (it is NOT indexPath.row). Then remove it from self.trades. After that, recompute self.sections dictionary with self.sections = groupBySymbol.map {(Key, Value) in return sectionBySymbol(symbol: Key, trades: Value) }. So it is much simpler to update sections[indexPath.section].trades directly.

So you had seen the answer on SO, and seen the answer there was essentially same as mine: no generic solution to solving. Note: if you set one of the unknown, you will not explore the whole surface and will probably fall out of the intersection. But if that fits your needs, that's OK? Good luck.

Once solved, what should the intersect func return ?