IF node not working as expected with SET node - Filtering multiple items from Notion Get Child Blocks request

Questions
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1

In the workflow below, I use a Get Child Blocks operation from the Notion node to get child blocks of a page; typically 4-5 blocks are given.

I then use the IF node to filter these blocks; the exact filter being:

$json["toggle"]["text"][0]["plain_text"] === "Onboarding"

This works fine if I manually specify the compare value (see IF:value=manual); but if I specify the exact same value using the Set node, it doesn’t work (see IF:value=set)

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Would be grateful for any feedback if I have made a mistake, but seems pretty simple and not sure why its not working as expected

Workflow:

2

You need merge set and Notion node’s output first, When N8N output have multiple output it seems only the first item can use expression from another node

3

Great, thank you very much - this worked.

For anyone interested, this is the workflow that resolves the issue: