bug: AlertDialog randomly not showing when opened from another AlertDialog that closed itself beforehand

[Creeper19472]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

As the title says, when I try to open another AlertDialog by calling page.show_dialog() in an AlertDialog in my project, for the sake of the interface's beauty, I close the previous dialog first and then show the new one. However, I find that this process can easily fail, but it is not necessarily unsuccessful.

Code sample

Code

import flet as ft


class AlertDialogTesting(ft.AlertDialog):
    def __init__(
        self,
        ref: ft.Ref | None = None,
    ):
        super().__init__(
            ref=ref,
        )
        self.title = "AlertDialog Example for Testing"
        self.content = ft.Text("Hello, World!")
        self.actions = [ft.TextButton("Open New Dialog", on_click=self.open_button_click)]

    async def open_button_click(self, event: ft.Event[ft.TextButton]):
        self.open = False
        self.update()
        self.page.show_dialog(AlertDialogTesting()) # will fail randomly


async def main(page: ft.Page):
    page.show_dialog(AlertDialogTesting())


if __name__ == "__main__":
    ft.run(main)

To reproduce

1. Run the demo code
2. Click "Open New Dialog" button
3. There is a probability that you will notice that the dialog box cannot be opened normally

Expected behavior

The new dialog is opened steadily after the old dialog is closed.

Screenshots / Videos

Captures

Flet.2025-10-07.08-26-50.mp4

Operating System

Windows

Operating system details

Windows 11 24H2 (26100.6584)

Flet version

v0.70.0.dev6214

Regression

I'm not sure / I don't know

Suggestions

No response

Logs

Logs

uv run flet run dialog.py

Additional details

No response

[3mora2]

I think the same error here #5605 (comment)

[Creeper19472]

Seems to be resolved in 0.70.0.dev6696.