Other custom columns added via hooks not rendering

I'm using the non-Pro version -- really wack that the hooks don't fire in free version, but whatever -- and since the free version can't accommodate my ACF repeater fields, I added `manage_post_posts_columns` and `manage_post_posts_custom_column` hooks in my theme to render it myself. But these custom columns aren't render if I have `admin-columns` plugin enabled. 

Am I doing something wrong?

