We have boilerplate time-based rolling filer appender (see below). At midnight, rollover occurs correctly. But, sometime during the next few hours, a switch occurs and from then all logs are being written to the previous day's log file.

I have seen the rollover at midnight and can confirm that at that point logging is correct. I have not observed the point at which the switch-back occurs but it is occurring each time.

<appender name="DailyRollingFileAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>teamwork.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- daily rollover -->
<fileNamePattern>teamwork.log.%d</fileNamePattern>

<!-- keep 30 days worth of history -->
<maxHistory>30</maxHistory>

<append>true</append>

</rollingPolicy>

<encoder>
<pattern>%-5level [%thread] %d

[%logger

] - %msg%n</pattern>
</encoder>
</appender>