log4j2 not generating logs on Staging machine - spring

Question

I have upgraded log4j 1 to log4j2 in our Spring project. Logs works fine on Dev and QA machines. But when we deploy it on Staging, logs are not being produced. When we turn on debug under there are logs on startup. But it gets silent after that without error. This is my configuration file.
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="my-project" packages="">
<Appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%d{ISO8601} %-5p (%x) [%t] %c{1} - %m%n"/>
</Console>
<!-- Debug Logger -->
<RollingFile name="DEBUG_LOG" fileName="/var/log/tomcat/my-project-backoffice-debug.log"
filePattern="/var/log/tomcat/my-project-backoffice-debug.log.%d{yyyy-MM-dd}.gz">
<ThresholdFilter level="DEBUG"/>
<PatternLayout >
<pattern>%d{ISO8601} %-5p (%x) [%t] %c{1} - %m%n</pattern>
</PatternLayout>
<TimeBasedTriggeringPolicy />
</RollingFile>
<!-- Info Logger -->
<RollingFile name="INFO_LOG" fileName="/var/log/tomcat/my-project-backoffice-info.log"
filePattern="/var/log/tomcat/my-project-backoffice-info.log.%d{yyyy-MM-dd}.gz">
<ThresholdFilter level="INFO"/>
<PatternLayout >
<pattern>%d{ISO8601} %-5p (%x) [%t] %c{1} - %m%n</pattern>
</PatternLayout>
<TimeBasedTriggeringPolicy />
</RollingFile>
<!-- Warn Logger -->
<RollingFile name="WARN_LOG" fileName="/var/log/tomcat/my-project-backoffice-warn.log"
filePattern="/var/log/tomcat/my-project-backoffice-warn.log.%d{yyyy-MM-dd}.gz">
<ThresholdFilter level="WARN"/>
<PatternLayout >
<pattern>%d{ISO8601} %-5p (%x) [%t] %c{1} - %m%n</pattern>
</PatternLayout>
<TimeBasedTriggeringPolicy />
</RollingFile>
<!-- Error Logger -->
<RollingFile name="ERROR_LOG" fileName="/var/log/tomcat/my-project-backoffice-error.log"
filePattern="/var/log/tomcat/my-project-backoffice-error.log.%d{yyyy-MM-dd}.gz">
<ThresholdFilter level="ERROR"/>
<PatternLayout >
<pattern>%d{ISO8601} %-5p (%x) [%t] %c{1} - %m%n</pattern>
</PatternLayout>
<TimeBasedTriggeringPolicy />
</RollingFile>
</Appenders>
<Loggers>
<Logger name="org.springframework" level="INFO"/>
<Root level="info">
<AppenderRef ref="DEBUG_LOG"/>
<AppenderRef ref="INFO_LOG"/>
<AppenderRef ref="WARN_LOG"/>
<AppenderRef ref="ERROR_LOG"/>
</Root>
</Loggers>
Thanks.
Update: The Solution:
One of older log4j dependency (transitive) was being loaded on Stage machine. Which is weird because the package got generated by Jenkins worked fine on Dev and QA machines. So I made sure to remove all transitive dependencies and it worked fine after that. These are the transitive dependencies I deleted.
commons-logging-1.1.1.jar
log4j-slf4j-impl-2.11.2.jar
log4j-1.2.17.jar