Hits charts was disabled by default.
I installed version 12.6.13. No problems are observed with WP Bakery 6.4.2.
Version 13.0.3 also caused this error when trying to save custom design settings: ‘//techmining.ru/wp-content/plugins/js_composer/assets/lib/bower/bootstrap3/less/responsive-utilities.less?v=6.4.2’ wasn’t found (503 ). If I uncheck the custom settings, they are saved. The frontend editor is working very buggy.
Version 13.0.3 – it seems that no problems with WP Bakery 6.2.0