Meta Box AIO Builder crash with "Something went wrong" on large field groups

Hello,

On one of my sites I have a large field groups created with Meta Box Builder - Meta Box AIO (20 fields).
When I try to edit those large field groups, the page loads for a few seconds, then shows "Something went wrong. Please try again!" and the builder becomes blank. The problem only happens on those large field groups. Smaller groups open fine.

WordPress: 6.8.3
Meta Box AIO: 3.3.4
Server: LiteSpeed, PHP 8.4, memory_limit 512M, max_input_vars 3000 etc.
No caching/minification plugin active, .htaccess is clean (default WordPress rules)

What I already tested:
Switched to a default theme (Twenty Twenty-Five), deactivated all plugins except Meta Box AIO, reinstalled Meta Box AIO from a fresh ZIP, reinstalled WordPress.

Here are errors on the builder page:

ReferenceError: can't access lexical declaration 'o' before initialization
at default https://www.mywebsite.com/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-builder/assets/build/4988.app.js:1

TypeError: can't access property "removeEventListener", document.querySelector(...) is null
at https://www.mywebsite.com/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-builder/assets/build/app.js?ver=968ec612c2fdf3eb38f2:1

Uncaught TypeError: can't access property "setAttribute", i is undefined
at https://www.mywebsite.com/wp-includes/js/tinymce/themes/modern/theme.min.js?wp-mce-49110-20250317:1

When I downgrade to Metabox AIO 3.2.0 everything works fine.

Is there a issue between Meta Box AIO 3.3.4, and WordPress 6.8.3 ?

Thank you