@fpinchon @ghiggins @Harbinger
The issue does stem from Tableau changing the API responses in their 20.4 version.
While we are creating issue to track, if you would like to self-resolve you may try the following:
1. Open the workflow in question that is showing error. Right-click the Publish to Tableau Server tool and select "Open Macro". This will open the workflow which is the Tableau Connector tool itself.
2. Go to Edit > Find, type in "257" and select Filter tool #257.
3. In that Filter tool update the Custom filter entry to:
4. Save the macro and rerun workflow in question. Note: Saving the macro will update the tool on the machine - not just for the specific workflow.
If you encounter further sues please contact Alteryx Support.
Sr. Customer Support Engineer – Connectors SME