Removing files/folders when uninstalling

[idaamit]

I have the following wxs file.
I took a small example from https://resources.oreilly.com/examples/9781782160427/-/tree/master/Chapter%203/Built%20in%20properties%20example
and added some changes :

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
	<Product Id="*" Name="BuiltInPropertiesExample" Language="1033" Version="1.0.0.0" Manufacturer="WixExamples" UpgradeCode="370661cf-b3e9-4c73-bd1b-f3f6939beab4">
		<Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />

		<MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
		<MediaTemplate EmbedCab="yes" />

		<Feature Id="ProductFeature" Title="BuiltInPropertiesExample" Level="1">
			<ComponentGroupRef Id="ProductComponents" />
		</Feature>
      
    <Condition Message="You must pass REGION_TYPE to install this product.">
       <![CDATA[Installed OR (REGION_TYPE <> "")]]> 
    </Condition>
    
    <InstallExecuteSequence>
      <Custom Action="SetUninstalling" After="FindRelatedProducts">Installed AND (REMOVE=&quot;ALL&quot;) AND NOT UPGRADINGPRODUCTCODE</Custom>
      <Custom Action="SetRemovingForUpgrade" After="RemoveExistingProducts">(REMOVE=&quot;ALL&quot;) AND UPGRADINGPRODUCTCODE</Custom>
      <Custom Action="Clean_Optional_Files_On_Install" After="InstallInitialize">NOT Uninstalling</Custom>
      <Custom Action="Clean_Custom_Files_After_Uninstall" Before="RemoveFiles">Uninstalling OR RemovingForUpgrade</Custom>
      <Custom Action="WriteREGION_TYPE" After="InstallFiles">NOT (Uninstalling OR RemovingForUpgrade)</Custom>   
    
    </InstallExecuteSequence>
    
    <CustomAction Id="SetUninstalling" Property="Uninstalling" Value="true"/>
    <CustomAction Id="SetRemovingForUpgrade" Property="RemovingForUpgrade" Value="true"/>
    <CustomAction Id="Clean_Optional_Files_On_Install" Directory="MyProduct" Execute="commit" Impersonate="no" ExeCommand="cmd.exe /c del /q webProxy" Return="check"/> 
    <CustomAction Id="Clean_Custom_Files_After_Uninstall" Directory="MyProduct" Execute="commit" Impersonate="no" ExeCommand="cmd.exe /c del /q *" Return="check"/>
    <CustomAction Id="WriteREGION_TYPE" Directory="MyProduct" Execute="commit" Impersonate="no" ExeCommand="cmd.exe /c echo [REGION_TYPE] &gt; regionType" Return="check"/>
	</Product>

	<Fragment>

    <SetDirectory Id="installationFolder" Value="[LOCATION]\MyConpany" Sequence="execute" >
      <![CDATA[LOCATION]]>
    </SetDirectory >
    
		<Directory Id="TARGETDIR" Name="SourceDir">
			<Directory Id="ProgramFilesFolder">
        <Directory Id="installationFolder" Name="MyConpany">
          <Directory Id="MyProduct" Name="MyProduct">
          </Directory>
        </Directory>
			</Directory>
		</Directory>
	</Fragment>

	<Fragment>
		<ComponentGroup Id="ProductComponents" Directory="MyProduct">
      <Component Id="CMP_InstallMeTXT" Guid="E8A58B7B-F031-4548-9BDD-7A6796C8460D">
        <File Id="FILE_InstallMeTXT" Source="InstallMe.txt" KeyPath="yes" />
        <RemoveFile Id="PurgeAppFolder" Property="MyProduct" Name="*.*" On="uninstall" />
        <RemoveFolder  Property="MyProduct" Id="installationFolder" On="uninstall"/>
      </Component>
		</ComponentGroup>
	</Fragment>
</Wix>

CustomAction WriteREGION_TYPE creates a file, and because of that files are not removed automatically.
so I added, CustomAction Clean_Custom_Files_After_Uninstall
Files were removed but not the empty folders.
I have added RemoveFile and RemoveFolder but still empty folder was not removed.
Could you please advise?