on my WP multisite network I use MB AIO to create the process I need. I noticed that sometimes I am not able to edit or create a CPT. I cannot click on publish or update. The site does not reload. sometimes it does. I noticed that I can publish and reload, when the button "create new custom post type" is not visible.
To add further. I tried to disable all the Plugins I use. I tried to use different WordPress Roles. I cleared cache. I checke connection. I get not JS or Serverside PHP Errors.
Please share a screen record of the issue on your site. And I'd like to have the admin account of your site to take a closer look. You can submit the contact form below to share the account. https://metabox.io/contact/
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