Not finding correct block in daily journal, creates new one even if exists

[ThinkSalat]

I have a block with text ### 🗒️ Musings: tags:: card. I'd like to have my quick capture notes appear under there but it's just creating a new block. I've tried a ton of different things, including changing the block property for tags to a hashtag on the same line but nothing is working.

How can I have quick capture add quick notes under an existing block?