We have a issue where Safari Versions 13.1 and below are now showing the header on a page.
https://monosnap.com/file/l76aEAJBVhDEmScJz6rp67FzYyItga
I duplicated the page for testing: https://www.protoolstraining.com/component/sppagebuilder/?view=page&id=440 on newer version of Safari, other browsers and pages the header shows fine.
It is a row in SP Page Builder with a Parralax Background.
Joomla! 3.10.5
SP Page BUilder Pro Version: 3.8.3
Flex - Multipurpose Template from Aplikko