Since the error seems being not blocking (post save or update action), I came up with a kind of fix (shame) adding !important to line 52 of global.css in advanced-custom-field-pro/css/global.css
So turning:
.acf-visible { display: block; visibility: visible; }
.acf-hidden { display: none; visibility: visible; }
in:
.acf-visible { display: block!important; visibility: visible; }
.acf-hidden { display: none!important; visibility: visible; }
prevent inline styles injected by Tabify to overwrite ACF styles.
There’s still the need to inspect if this could be enough or there’s any other compatibility issue especially concerning data.
