Unable to create third index in elastic search for logging using NLog in Asp.net core - asp.net

Question

Hello Everyone,
I am new to the elk stack and trying to do logging using elastic search. I want to create different index for different different services in api. I am able to create two indexes of different services but can not do the same for third index.
Following is my nconfig file
<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
autoReload="true"
throwExceptions="false"
internalLogLevel="Trace" internalLogFile="c:\temp1\nlog-internal.log">
<!-- optional, add some variables
https://github.com/nlog/NLog/wiki/Configuration-file#variables
-->
<variable name="myvar" value="myvalue"/>
<extensions>
<add assembly="NLog.Targets.ElasticSearch"/>
<add assembly="NLog.Web.AspNetCore"/>
</extensions>
<!--
See https://github.com/nlog/nlog/wiki/Configuration-file
for information on customizing logging rules and outputs.
-->
<targets>
<!--
add your targets here
See https://github.com/nlog/NLog/wiki/Targets for possible targets.
See https://github.com/nlog/NLog/wiki/Layout-Renderers for the possible layout renderers.
-->
<target xsi:type="File" name="f" fileName="${basedir}/logs/log.txt"
archiveFileName="${basedir}/logs/archives/log.txt"
archiveAboveSize="5242880"
archiveEvery="Day"
archiveNumbering = "Rolling"
maxArchiveFiles="3"
layout="${longdate} ${uppercase:${level}} ${message}" />
<target xsi:type="BufferingWrapper" name="ElasticSearch"
flushTimeout="5000">
<target xsi:type="ElasticSearch" name="elastic" index="aquaparallelapi"
uri="http://localhost:9200"
layout ="API:aquaparallelapi|${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />
</target>
<target xsi:type="BufferingWrapper" name="ElasticSearch"
flushTimeout="5000">
<target xsi:type="ElasticSearch" name="elastic1" index="aquaparallelapiprogress"
uri="http://localhost:9200"
layout ="API:aquaparallelapi|${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />
</target>
<target xsi:type="BufferingWrapper" name="ElasticSearch"
flushTimeout="5000">
<target xsi:type="ElasticSearch" name="elastic2" index="aquaparallelapitestcase"
uri="http://localhost:9200"
layout ="API:aquaparallelapi|${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />
</target>
<!--
Write events to a file with the date in the filename.
<target xsi:type="File" name="f" fileName="${basedir}/logs/${shortdate}.log"
layout="${longdate} ${uppercase:${level}} ${message}" />
-->
</targets>
<rules>
<!-- add your logging rules here -->
<logger enabled="true" name="*" minlevel="Debug" writeTo="f" />
<logger enabled="true" name="*" minlevel="Debug" writeTo="elastic" />
<logger enabled="true" name="AquaParallelAPI.Controllers.ProgressController" minlevel="Debug" writeTo="elastic1" />
<logger enabled="true" name="AquaParallelAPI.Controllers.TestCaseController" minlevel="Debug" writeTo="elastic2" />
</rules>
</nlog>
As you can see above indexes aquaparallelapi and aquaparallelapiprogress is created and gives the desired result but index aquaparallelapitestcase is not created. When I tried to do
http://localhost:9200/aquaparallelapitestcase
then
{"error":{"root_cause":[{"type":"index_not_found_exception","reason":"no such index [aquaparallelapitestcase]","resource.type":"index_or_alias","resource.id":"aquaparallelapitestcase","index_uuid":"_na_","index":"aquaparallelapitestcase"}],"type":"index_not_found_exception","reason":"no such index [aquaparallelapitestcase]","resource.type":"index_or_alias","resource.id":"aquaparallelapitestcase","index_uuid":"_na_","index":"aquaparallelapitestcase"},"status":404}
Please let me know where I am wrong?