Custom GUIs stop working until restarting the game when hiding the menu bar via "Hide Menu Bar" option in context menu (not when hiding via CTRL + ALT + C)

[Keksuccino]

Description:

When using FancyMenu v3.6.4 on Minecraft 1.20.1, custom GUI screens and certain custom elements stop working only when the menu bar is hidden via Menu Bar > Customization > Hide menu bar.

🐛 Issue Details:

• The button to open a custom GUI reacts (hover and click sounds), but the screen does not change.
• No errors appear in logs or in-game.
• The same button does work when the menu bar is hidden using the CTRL + ALT + C shortcut.
• modpack_mode remains set to false in options.txt, so it is not the cause.
• No loading requirements are set on the button or layout.
• This bug also causes some custom elements to stop working entirely after hiding the menu bar through the UI—until the game is restarted.

🧪 Findings:

• The issue seems linked to the "Are you sure?" dialog shown when hiding the menu bar via the menu.
• This dialog might be interfering with internal state or element activation.
• Using the keyboard shortcut to hide the menu bar does not trigger this bug.

✅ Expected Behavior:

Custom GUI buttons and custom elements should function the same whether the menu bar is hidden via UI or via the shortcut.

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Steps to Reproduce:

1. Create a custom GUI with a button that opens it.
2. Open Minecraft with FancyMenu 3.6.4.
3. Hide the menu bar using Menu Bar > Customization > Hide menu bar.
4. Try activating the button – nothing happens.
5. Now restart and repeat using CTRL + ALT + C instead – the button works fine.

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Suggested Fix:
Investigate if the "Are you sure?" confirmation dialog or related logic is altering the behavior/state of the FancyMenu system in a way that breaks UI interaction.

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Reporter: jellyfish boi
CC: @Keksuccino
Report Source: https://discord.com/channels/704163135787106365/1401460651649532015