+1 for this as well. Having a Composer package for ACF PRO would be great!
The fix to this, was actually to change WP_DEBUG to false. After doing that, everything worked fine.
This is super weird… if I change the CPT-post to “Pending Review” or “Draft” in the Quick Edit options, then edit the page, it accepts and saves the data if I “Save as Pending” (doesn’t work if I hit Publish). Then I can set the status back to “Published” from the Quick Edit panel and the updated data shows up.
Anyone have any ideas on this one?
Well… it hardly ever fails. Submit a support question and then figure it out 10 minutes later…
I went through every custom field group in the admin, expanding every item, and “updated” all of them.
Now everything shows correctly.