Version 1.3.41 and Elementor
There seems to be some compatibility issues with this version 1.3.41 and Elementor version 0.11.2 Elemntor won’t accept background column changes in the column or heading (within elementor) I posted the issue also on the elementor forum. https://wordpress.org/support/topic/strange-issue-with-elementor-after-updating-the-website-theme/#post-8505385