Hello,
This is one of the other reasons I love MainWP! With all #wpdrama over the few weeks, this weekend, Matt Mullenweg went crazy and decided to replace ACF free with a “fork” version of it called SCF!
This is crazy as all the sites using ACF free as now SCF:
You need to download to official version of ACF free directly from their site: https://www.advancedcustomfields.com/blog/installing-and-upgrading-to-the-latest-version-of-acf/ then, select all your sites (as show above with the screenshot) and click on the little button “Installed to selected sites”:
Select Upload zip file and grab the zip you just download from ACF site:
and complete the installation:
Sync your MainWP to double check that SCF is gone and ACF is back.
That is it. It took me longer to write this little tutorial then doing it.
Thanks @dennis and MainWP team for making our life easier!