Hello John
I’ve disabled all plugins and step by step enabled them again. The “bad” plugin is “Advanced Custom Fields: Contact Form 7” by Taylor Mitchell-St.Joseph.
This is causing the issue.
While the developer does not provide a fix, I found a solution:
https://github.com/robertark/acf-cf7/commit/1e9916e259664877d107b10b48c2efb3c46b9894
I’ve found the solution:
$count = count(get_field("fieldname"));
I also narrowed the problem. When I delete a layout-field inside the flexibile content (in the current field group), then I am able to assaign the fields to a new page.
So from my point of view – ACF is hitting a Limit..
@m3ndi3
Thanks for the post – but my problem is still there. I do not have a memcache installed or something like that.
I worked on the Website for 2 Weeks and didn’t installed any plugins, updates or widgets. It all worked untill yesterday…