Slack's banner notification in Mac/Phone cannot display message

Hi, currently i’m using circleci/slack@4.1.1 Orb for slack notification in my config. I’m using custom block not the built-in template. The message are properly rendered and displayed when viewed directly inside channel chat.

On top of it, if it related, i’m opened slack using Franz(https://meetfranz.com). Am i missing something?

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