File Dialog screen without content

[Lempi-sudo]

Checklist

• I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
• This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

Sometimes, when using the File Open dialog, opening a folder results in an empty window. The contents of the folder do not appear immediately.

The freeze will occur at 1 out 40-50 directory changes.
The freeze is non-recurrent. It occurs randomly.
The systems state on the moment of bug is impossible to reproduce. The bug occurs chaotically.

Workarounds:
In that case when you have a blank window. Resizing the window using the cursor makes the contents appear. Stepping out of the folder and then stepping back in also resolves the issue.

Expected Behavior:
The folder contents should be displayed immediately upon opening, without requiring manual resizing or navigation.

Let me know if you need further refinements!

How to reproduce

To reproduce this bug you have to:

1. run the code,
2. open file dialog,
3. step into some random folder,
4. step out until a freeze (the screen will go empty without any folders or files) in the widget.
5. If nothing happens, repeat step 3 and 4,

Screenshots

Example code

func main() {
	myApp := app.New()
	myWindow := myApp.NewWindow("File Dialog Example")
	myWindow.Resize(fyne.NewSize(800, 600))
	openButton := widget.NewButton("Open File Dialog", func() {
		fileDialog := dialog.NewFileOpen(func(reader fyne.URIReadCloser, err error) {
			if err != nil {
				dialog.ShowError(err, myWindow)
				return
			}
			if reader == nil {
				return
			}
			defer reader.Close()
			filePath := reader.URI().Path()
			fmt.Println("Selected file:", filePath)
		}, myWindow)
		fileDialog.Show()
	})
	myWindow.SetContent(container.NewVBox(
		openButton,
	))
	myWindow.ShowAndRun()
}

Fyne version

fyne.io/fyne/v2 v2.4.4

Go compiler version

go 1.21.5

Operating system and version

Windows 10

Additional Information

This issue occurs on multiple devices, including my laptop and my friends' laptops.

[Jacalz]

Thanks for reporting this. Does this reproduce with v2.6.0-alpha1? The backend has seen a massive rework to remove race conditions and improve performance.