Have you tried a PNG image?

Sounds like that's an issue in the X app. The X company are likely working on their app so it will work properly on iOS 18 when iOS 18 is released, but the X app cannot be released until then. If you honestly think it's an issue with the iOS beta, then you should raise an issue at https://feedbackassistant.apple.com/ then post the FB number here.

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

What problem?

Your post makes no sense. What is your issue? What is your question? Why does it relate to developers? Is this an issue with your Apple ID? If so, go to the Apple Support Forums. Thanks.

Show us your code.

Sorry to be blunt, OP, but neither of your posts have anything to do with us here on the Developer Forums. We're just developers writing apps. We aren't Apple employees. These forums are not the place for posts like yours. If you have some concerns about your device, wipe it and start from scratch. Don't restore from a backup unless doing so would mean you lose something you really don't want to lose. Importantly, read what @endecotp wrote. It's highly likely that you're being scammed, so don't speak to anyone who calls you or messages you saying your device is hacked etc. It's a load of nonsense.

This doesn't make much sense. Can you list the steps you're taking, maybe show some screenshots of what's happening? Right now, what you've written is a vague feature request that no one could work with. Also, please note, these are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. These forums are not where Apple's actual developers chat about new features. If you have a suggestion, you should raise it at: https://www.apple.com/feedback/

You really need to put at least some of the first lines of the crash log in here, as we can't tell why your app would crash from your code.

Have you selected the build you uploaded, in App Store Connect? Once that's selected, and you've got your screenshots uploaded you should be able to send the app for review.

What's "messenger note"? Is it an Apple app? If not, it looks like whoever makes that app needs to update it to work with iOS 18. They won't actually be able to release that app until iOS 18 is finally released in a couple of weeks.

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. Your post is a suggestion for a new feature, so I'd kindly ask that you raise your suggestion in the usual way at https://feedbackassistant.apple.com/ Thanks!

You might want to show us some of your code. You might be doing something wrong. On the other hand, if you're reporting a bug, the forums aren't really the place to do it, as it won't really get progressed if it's only posted here. You need to raise it at https://feedbackassistant.apple.com/ You can post the FB number here if you want.

The apps are hidden, and it's just a blank folder that's showing. What's the issue?

I think this should be reported as a bug. .popover is a modifier on the TabView, and your app builds correctly when it's written as it is in your screenshot. Moving it inside the TabView means you're modifying, in your example, the VStack? You should probably raise this as a bug in the usual way at https://feedbackassistant.apple.com/