Our login-audit-web-api.csv log file is empty, yet we have many mobile users. Ho

Check that the logging settings in appian_log4j.properties haven't changed. The relevant logger is - log4j.logger.com.appian.login-audit-web-api=INFO, LOGIN_AUDIT_WEB_API

Also -
log4j.appender.LOGIN_AUDIT_WEB_API=com.appiancorp.common.logging.AppianFileAppender
log4j.appender.LOGIN_AUDIT_WEB_API.layout=com.appiancorp.common.logging.CsvLayout
log4j.appender.LOGIN_AUDIT_WEB_API.layout.AddTimestamp=false
log4j.appender.LOGIN_AUDIT_WEB_API.layout.ColumnNames=Timestamp,Username,Status,IP,Source,User Agent
log4j.appender.LOGIN_AUDIT_WEB_API.File=${AE_LOGS}/login-audit-web-api.csv
log4j.appender.LOGIN_AUDIT_WEB_API.MaxFileSize=10MB
log4j.appender.LOGIN_AUDIT_WEB_API.MaxBackupIndex=1000
log4j.appender.LOGIN_AUDIT_WEB_API.encoding=UTF-8

That is it, thank you Abhi.