I created a custom post type. I then created a custom field group and associated it to the custom post type.
The Meta Box custom fields are not visible in the Add New post UI when Supports/Editor is selected in the Meta Box CPT settings. When I deselect Supports/Editor, I can see the fields.
Is there something that I'm missing, or could this be related to WP 5.6 which I am running? If neither, are there recommended steps for troubleshooting?