Log4j2 - LogManager.getLogger("name") not finding custom loggers - log4j

Question

Log4j2 - LogManager.getLogger("name") not finding custom loggers.
All of the following return the same logger - that being the Root logger for the class that this code is in. I would like to think these would all be different and I would get my 3 custom ones back for the first 3 calls.
Note the files specified by the appenders are created, but no logs are sent to them.
Logger _l = (Logger) LogManager.getLogger("Global");
_l = (Logger) LogManager.getLogger("fakeswitch");
_l = (Logger) LogManager.getLogger("fakeswitch_two");
_l = (Logger) LogManager.getLogger();
I create custom loggers using the following:
ComponentBuilder triggeringPolicy = configurationBuilder.newComponent("Policies")
.addComponent(configurationBuilder.newComponent("TimeBasedTriggeringPolicy").
addAttribute("interval", "1"));
AppenderComponentBuilder log4jFileAppenderBuilder = configurationBuilder.
newAppender(pName + "_SmdrDailyRollingFileAppender", "RollingFile");
log4jFileAppenderBuilder.addAttribute("filename", pLogFilename);
log4jFileAppenderBuilder.addAttribute("filePattern", pLogFilenamePattern);
log4jFileAppenderBuilder.addComponent(triggeringPolicy);
// Configure the PatternLayout
LayoutComponentBuilder layoutComponentBuilder = configurationBuilder.newLayout("PatternLayout").
addAttribute("pattern", DEBUG_PATTERN_LAYOUT_STRING);
log4jFileAppenderBuilder.add(layoutComponentBuilder);
// Add it back into configuration
configurationBuilder.add(log4jFileAppenderBuilder);
// https://logging.apache.org/log4j/2.x/manual/customconfig.html
LoggerComponentBuilder logger = configurationBuilder.newLogger(pName, Level.DEBUG);
logger.add(configurationBuilder.newAppenderRef(pName + "_SmdrDailyRollingFileAppender"));
logger.addAttribute("additivity", false);
configurationBuilder.add(logger);
// Actually use it
LoggerContext _loggerContext = Configurator.initialize(configurationBuilder.build());
The equiv XML from writeXmlConfiguration is:
<?xml version="1.0" ?>
<Configuration>
<Appenders>
<RollingFile name="Global_SmdrDailyRollingFileAppender" filename="ps/debug/SMDR_DEBUG.txt"
filePattern="ps/debug/SMDR_DEBUG_%d{yyyyMMdd}.txt.gz">
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
</Policies>
<PatternLayout pattern="%d{MM.DD.yy-HH:mm:ss} %m%n"/>
</RollingFile>
<RollingFile name="fakeswitch_SmdrDailyRollingFileAppender" filename="ps/debug/SMDR_DEBUG_fakeswitch.txt"
filePattern="ps/debug/SMDR_DEBUG_fakeswitch_%d{yyyyMMdd}.txt.gz">
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
</Policies>
<PatternLayout pattern="%d{MM.DD.yy-HH:mm:ss} %m%n"/>
</RollingFile>
<RollingFile name="fakeswitch_two_SmdrDailyRollingFileAppender"
filename="ps/debug/SMDR_DEBUG_fakeswitch_two.txt"
filePattern="ps/debug/SMDR_DEBUG_fakeswitch_two_%d{yyyyMMdd}.txt.gz">
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
</Policies>
<PatternLayout pattern="%d{MM.DD.yy-HH:mm:ss} %m%n"/>
</RollingFile>
</Appenders>
<Loggers>
<Logger name="Global" level="DEBUG" additivity="false">
<AppenderRef ref="Global_SmdrDailyRollingFileAppender"/>
</Logger>
<Logger name="fakeswitch" level="DEBUG" additivity="false">
<AppenderRef ref="fakeswitch_SmdrDailyRollingFileAppender"/>
</Logger>
<Logger name="fakeswitch_two" level="DEBUG" additivity="false">
<AppenderRef ref="fakeswitch_two_SmdrDailyRollingFileAppender"/>
</Logger>
</Loggers>
</Configuration>

Answer 1

This was answered for me by Piotr P Karwasz.
This only works if the LoggerContext has not been initialized yet. Since
every call to a LogManager method initializes a LoggerContext, it is
almost certainly too late to use Configurator.initialize.
Use Configuration.reconfigure instead, which works in all cases.
Piotr
--- my code change was
LoggerContext _loggerContext = Configurator.initialize(configurationBuilder.build());
to
Configurator.reconfigure(configurationBuilder.build());