After updating to Pro 5.7.3, we noticed that any Taxonomy fields that had the “Save Terms” option turned on began to have issues. On the post edit/create screen, if you used the Taxonomy field and selected a value, all ACF fields on the edit post screen would disappear.
We reverted back to Pro 5.7.2 and the issue is no longer present. I believe this is a bug in the latest release…so hopefully you can replicate and address in the next release.
I’ve successfully found and fixed the issue, and re-uploaded the plugin files online for you to test.
Can you please re-download the ACF PRO plugin files to get the patched JS?
Tip: You can also trick ACF into re-updating itself by editing the main “acf.php” plugin file and changing the two references of “5.7.6” to “5.7.5”. This will allow WP to check for plugin updates and you can then re-update the plugin 🙂