I have registered a custom post type and created an advanced post creation add-on form that allows users to add entries.
When the CPT is not in gutenberg - the process works fine and the page can be edited through admin.
But when the CPT is in gutenberg via ‘show_in_rest’ => true, while the entry is added, when trying to edit it via admin, I get “PHP Fatal error: Maximum execution time of 30 seconds exceeded”.
(If I simply create a new entry into the CPT using gutenberg without using the APC form, it can be viewed and edited just fine - no error)
Why does the APC break gutenberg?