Hi.
1. In case of using Bricks Builder, please reach out to them if you have any issues with installation, configuration, compatibility, or usage.
Refer to our support policy https://metabox.io/support/topic/support-policy/
2. It's the context
setting, and the context after_title
does not work with Gutenberg (block) editor. Please read more on this documentation https://docs.metabox.io/creating-fields-with-code/#contexts