Cannot select Cryptomator folder in SwiftUI file importer

[nickasd]

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• I have searched existing issues for duplicates
• I agree to follow this project's Code of Conduct

Summary

The SwiftUI file importer doesn't allow to select folders in a Cryptomator vault

System Setup

• iOS: 18.0
• Cryptomator: 2.6.2

Cloud Type

iCloud Drive

Steps to Reproduce

1. Run a SwiftUI app with the following content:

struct ContentView: View {
    @State private var isPresentingUrlPicker = false
    @State private var label = ""
    
    var body: some View {
        VStack {
            Button("Open") {
                isPresentingUrlPicker = true
            }
            Text(label)
        }
        .fileImporter(isPresented: $isPresentingUrlPicker, allowedContentTypes: [.folder, .data]) { result in
            do {
                let url = try result.get()
                let _ = url.startAccessingSecurityScopedResource()
                label = url.path
                url.stopAccessingSecurityScopedResource()
            } catch {
                label = error.localizedDescription
            }
        }
    }
}

2. Tap on the Open button.
3. Select a folder in a Cryptomator vault.

Expected Behavior

The Open button of the file importer should be enabled.

Actual Behavior

The Open button of the file importer is disabled.

Reproducibility

Always

Relevant Log Output

No response

Anything else?

I cannot reproduce the issue myself since I don't have Cryptomator for iOS. I became aware of this through a customer of my app which allows to select folders.