Hello,

Thank you for reaching out.

The issue is caused by a small CSS override affecting the menu icon. To resolve it, please add the following custom CSS in Custom Code → CSS, or follow the instructions in the documentation: https://www.joomshaper.com/documentation/helix-framework/custom-code-css-js-meta#documentation-heading-3

.burger-icon > span {
    background-color: #000 !important;
}

This will ensure the burger icon displays correctly.

Thank you.