Side menu not opening

[themaayur (Mayur Berad)]

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Sidebar menu with error on startup

besides sliding i also put a button to open the sidebar menu when it is clicked but when the app launches the button it doesn’t make the sidebar menu work Only when I slide the sidebar menu as usual of its function does the button start working normally if someone could explain to me why this happens, if it’s a bug or my mistake; -; someone help me

Make sure the arrangement is visible.