I am having a similar issue with screen options becoming unchecked upon editing a page.
I have a field group called ‘Page content’ that allows the user to add different types of column structures. When any user (including admin) edits the page, the field group is turned off by default. The user must click Screen Options and re-check the ‘Page Content’ checkbox to edit the ACF fields. Using ACF Version 5.1.9
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