Processes that were in-flight or active during the time of upgrading to 17.4, show missing or incorrect process history after upgrading.
This issue has been addressed as AN-97571 in the following hotfixes/versions:
Apply the latest hotfix to your Appian installation.
This article applies to all versions of Appian upgraded to 17.4 without Hotfix Package B installed.
Last Reviewed: January 2018
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