[Dinesh Kesharwani]

I applied the patch and tested with all default themes (twenty-*) and two custom themes and it works fine.

[Dinesh Kesharwani]

@sushant88

Can you please confirm that same thing, issue is gone when changing Template Pack to Legacy, is happening on your side too.

[Dinesh Kesharwani]

Hello @r-a-y
I am also using fresh WordPress setup, but still facing the issue. Here are the setup environment details:
WordPress: 4.9.7
BuddyPress: 3.1.0
Twenty Seventeen: 1.6

I enabled script debugging by adding following code to wp-config.php:
define( 'SCRIPT_DEBUG', true );

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The issue is arriving when I am opening customizer from any page, either I am in Appearance section or Pages.

I tried one setting in BuddyPress and issue gone. I changed Template Pack from BuddyPress Nouveau to BuddyPress Legacy in Admin Panel > Settings > BuddyPress > Options tab > Main Settings > Template Pack.

When changed “Template Pack” to “BuddyPress Legacy” it’s not loading any js containing wp.customize.control, so it’s not generating any error.