@williamotto, sorry I didn’t report back here. The gist of WP Engine’s reply to me was that Elliot (plugin author) is aware of the issue and they included some links to similar threads on this forum. Search for “wp engine”.
My solution was to turn of WP Engine caching while developing. Not ideal.
This is in no way a gripe from me re Elliot or ACF. The man is a gun and this plugin is incredible. Maximum respect.
I’ve had all sorts of issues with WP Engine caching…
