One of the most important areas to look at is the Size section. We have seen how customers had this set to Phone and it made everything appear as a column when embed. If you have Phone as an option here, we recommend that you entirely delete this by clicking on the ... icon next to it.
Macro loads but the content is empty
You are likely entering incorrect values into the View and Workbook fields. Try copying these from the URL when viewing Tableau to confirm you got them right.
For example, if you look at the screenshot below, you may think you want to write “What If Forecast” in the view, but it is actually “WhatIfForecast”: