Hi Michael,
Thanks for the response – I tried registering the type manually and was able to get things working by adding “show_ui” => true. Which was also set within the CPTUI plugin, however, adding this in my functions.php was what made it work. Then, I commented it out of my functions.php and for some reason, permissions again worked as expected. Maybe it took some time for the settings to kick in? I’m not quite sure.