The problem has returned - again.

I received an update a couple of hours ago and the problem has now fixed itself.

If anyone would like to know a likely reason for this, please read through the thread at Swift.org Forum. Test code included.

3 days ago I said I didn't wish to sound critical. Ha!. I'd been hoping someone from Apple would come forward, even if they were to say I've been wasting my time. As we all know, they're extremely reluctant to own up when something doesn't work. SwiftUI is promoted to be cross-platform across Apple platforms - including macOS. They don't tell us this only applies for apps the size of an iPhone. I think I have every right to be critical, and I would very much appreciate a response from Apple - hopefully with some hope that I won't need to abandon this project.

OK, so it was a dumb question as I now know it's possible to use VStack, HStack, etc. However, the recent macOS / Xcode update (15th March 2022) has introduced warning messages: Expression requiring global actor 'MainActor' cannot appear in default-value expression of property '_callsign'; this is an error in Swift 6 With no clues on how to solve. If only Apple would spend a little more time writing user friendly documentation.

If Apple knew how to write documentation and provide examples, I wouldn't have to ask on this useless forum.

To be clear, the above code produces this: The app I'm working on looks like this: The spectrum view is updated every 333ms from a source I have no control. The 40 Text fields and 73 Buttons are updated from a local server every 500ms. The app takes 12 seconds to launch and clicking the read close icon causes the app to hang for 20 seconds. While the networks are connected it's impossible to Quit, because the main thread is running at 99% cpu. I'm hoping SwiftUi can do better than this. As an experiment, I tested the spectrum view in a standalone app. I consumed only 1% of cpu.

This is pathetic. I can't find a single way to render markdown on the Mac. Not even a Safari extension or in TextEdit. There are plenty of editors on the App Store that can do it, but not what I want. Apple is promoting Swift Package Manager, so there really is no excuse.

Apple can't remove the App Store version, so perhaps the backend is broken and they don't have a backup. But it would nice if they would come clean and tell us what the **** is going on. Their refusal to own up and communicate is quite normal, so good luck to those waiting for approval.

Is it viable to use Microsoft's Visual Studio instead of relying on Xcode?