This issue has been addressed via AN-104637 in the following hotfixes/versions:
Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.
The following workaround can be used as a temporary measure until the hotfix or upgrade can be applied.
Edit the appian_log4j.properties file located at <APPIAN_HOME>/ear/suite.ear/resources, changing the following logger from:
This article applies to all versions of Appian from Appian 17.2 to Appian 18.1.
Last Reviewed: August 2018
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