Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

RuntimeException: Component stack mismatch



Post Pega 7.3.1 update, RuntimeException occurs after case creation.

Error Messages

Section 'pyCaseContainer' execution error on page 'pyWorkPage' of class 'AA-BB-CC-DD-EE-FF'.
java.lang.RuntimeException: Component stack mismatch {"NTId":"1528104930394000","NTRef":"cad6e5fe51b09eb67203d77e43dba6f2_39","pyName":"pxNonTemplate"}!!!!===={"paramName":"EXPANDEDSubSectionpyCaseContainerB","liveUI":"data-ui-meta=\"{'type':'Layout','subType':'SECTIONINCLUDE','pgRef':'.pySections(1)'}\"","sectionIndex":"1","isSectionIncl":"true","pyName":"pxLayoutContainer","pyTemplates":[{"pxReferencedId":"b553f0c7838606473d450547a479901e_2","pyName":"pxSection"}]}
at com.pega.pegarules.session.internal.mgmt.autostreams.uicomponent.json.UIComponentRuntimeImpl.finishProcess( ~[prprivate.jar:?]

Steps to Reproduce

  1. Update Pega 7.1.8 to Pega 7.3.1.
  2. Create a case through SOAP service.
  3. After case creation, this exception is coming in log.

Root Cause

This behavior is as per Pega product design.

When the access group on the Service Package and Operator are set with the same service package, the system pages (such as Application page) are not loaded for the better performance of Application and Batch requests.


Perform the following local-change:

Include different access group (such as Save As of the access group defined for service package or operator) configured for the Operator or Service Package.

For more information, refer to:


Published October 13, 2018 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us