Error: Image cannot be pasted due to authentication requirements

Issue symptoms

When I add inline images to tickets, a pop-up appears with the error message Image cannot be pasted due to authentication requirements.

Resolution steps

When the Enable secure downloads option is enabled, agents are not able to add inline images to tickets any more. Disable Enable secure downloads to allow inline images in tickets. 

For more information, see these articles:

• How do I add images into the body of a ticket?
• Enabling secure chat attachments in the Zendesk Agent Workspace