Notion: update by URL not working (for guest-added pages)

Questions
16

I also did start to experience the error message, out of the sudden since ~ last week.

ERROR: Block parameter's value is invalid. This is likely because the URL entered is incorrect

For now, have only issue with the Notion Node:

Resource: Block
Operation: Get child blocks

Currently on n8n 1.59.2.

Thanks @Jon for investigating!