I am trying to make login scheme based-on google sheets but despite making a carbon copy of the steps I am still getting the above "cannot parse text argument" error.
At this point I am breaking down the problem to just understand how "list from csv row text" works.
So I have this very simple blocks that simply read from the csv file I exported, yet it returns the same error.
Your query returns the header row AND the query data, so you have a csv table not a csv row.
You will need to use the list from csv table block to make the responseContent an AI2 list, then remove the first item in that list to have just the data.