SA-27799

Summary

Transaction ID mismatch errors appear.

Error Messages

posted transaction id 'a1d4d8402383e716aead0d23b081361f' for frame 'pyWorkPage' DOES NOT match record '6a799f21a213921a73839f98653314ea'

Steps to Reproduce

1. Create multiple tabs focusing on different work objects. Each tab will be on a separate thread and will have its own pzTransactionID. The tab should not refresh when it is active as a result of a user click on the already existing tab.
2. Have a button present in each tab, which runs an activity that returns no content.
3. Switch from one tab to another tab.
4. Click the button, which fires the activity. 
5. Perform any other action on that tab, which performs a POST, like reloading a section.

Root Cause

A defect in Pegasystems’ code or rules:
Executing the activity that returns no content replaces the pzTransactionID of the current thread by the pzTransactionID of the previous thread.

Resolution

Apply HFix-29263.