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Unable to publish to Tableau Server - Workbook thumbnail format is invalid


Published: 10 Dec 2021
Last Modified Date: 10 Dec 2021

Issue

When publishing to Tableau Server, the following error occurs:

Publish failure 
workbook thumbnail format is invalid. Must be PNG with resolution of 300*300 or less.

Environment

  • Tableau Server
  • Windows Server 2012

Resolution

As a Tableau Server Administrator, upgrade Tableau Server to version 2021.4, https://www.tableau.com/support/releases/server/2021.4

Cause

This behavior is related to a known issue that has been fixed in the 2021.4 release of Tableau Server.
 
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