ATTENTION ALL!! I’ve got a simple fix that doesn’t require reverting:
If you’re getting the 404 error issue after applying the new update, simply go into the Edit Post Type screen in the CPT UI admin, choose any custom post type for editing, the hit the Edit Post Type button without making any changes. This will reestablish all of your permalinks for you custom post types.
I had multiple sites that broke because of this and I was able to fix them all quickly with this method.
Michael, this issue aside (shit happens sometimes, I know), I have to say I’m not a big fan of the UX/UI change. The previous version’s presentation for listing out custom post types/taxonomies was more comparable to a basic WordPress interface and, therefore, more familiar and comprehensible. The accordion functionality of the labels/settings fields feels a little clumsy, too, and doesn’t fit well on smaller screens.
Friendly suggestion: make the UX/UI look and feel just the default interface for pages/posts. In other words, just have them list out in the same fashion with an “Add New” button next to the section title. That way you don’t have to teach folks how to use a new interface.
That said, it’s a great plugin and I really appreciate your hard work!
Thanks!
Mark