Air Table - Long text - Post

Hello! I have a POST question with Airtable. I want to post the complete answer in a long text and when I do the Request test everything works. When the text comes from the capture of the variable in the previous block, it doesn't work. I'm within the allowed text length and the variables are well marked. Enable rich text formating in Air table doesn't change anything and I've even tried putting an Set Ai before sending to Air table to format the text as simply as possible. Is it possible to help me please?