we are experiencing an issue each time we place an ACF block on a page. We get a spinning wheel and nothing every happens. Clicking on edit or preview makes no difference. Once we update / publish the page and refresh, the form displays correctly.
Why would this be occurring?
This is the error in our WP log file
Undefined index: id in /wp-content/plugins/advanced-custom-fields-pro/pro/blocks.php on line 598
We also receive a JS error
Uncaught TypeError: Cannot read property ‘form’ of undefined
and
Uncaught TypeError: Cannot read property ‘preview’ of undefined
We have tried installing the plugin as well as updating to the newest version. Both to no avail.
I’m encountering the same issue since updating the plugin, although the form never appears. (The JavaScript error always appears in the console.)
I’m getting this issue too when adding blocks in the Customizer. “Uncaught TypeError: e.data is undefined” happening within acf-pro-blocks.min.js.
Edit: I didn’t realize how old this thread was. For reference, I’m using 5.9.9. I don’t think I had this issue in the previous version.