Failed to launch session "session_name". Error code: 2520 on Citrix Workspace App During App/Desktop Launch

Failed to launch session "session_name". Error code: 2520 on Citrix Workspace App During App/Desktop Launch

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Article ID: CTX241335

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Updated On:

Description

The following error is returned by the Citrix Gateway to Citrix CWA app when application/desktop launch fails:
Failed to launch session <session_name>. Error code: 2520 

Resolution

This error indicates that the STA ticket received from CWA application has incorrect format.

No config change/user action is needed. Retrying to launch app/desktop may help. If the issue persists please contact Citrix Support.