Problem with band merge in Gpt. Defining the second input?

Optical Toolbox
4

I resolved one part of the problem with the idea presented in this post OLCI C2RCC bulk processing - s3tbx - STEP Forum (esa.int). Now the problem it is that with a *.dim file the gpt won’t start, but the same process will start with a *.SAFE file…
Below I’ll describe and write the whole process.

THIS IS THE WINDOWS BATCH

::@echo off
:: enable delayed expansion - used to resolve variable in loop
:: variable has to be used with '!' instead of '%'
setlocal ENABLEDELAYEDEXPANSION

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:: User Configuration
::::::::::::::::::::::::::::::::::::::::::::

:: adapt this path to your needs
set gptPath="C:\Program Files\snap\bin\gpt.exe"

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:: Command line handling
::::::::::::::::::::::::::::::::::::::::::::

:: first parameter is a path to the graph xml
set graphXmlPath=%1


:: use third parameter for path to source products
set sourceDirectory=%2
:: if sourceDirectory ends with '\' remove it
if %sourceDirectory:~-1%==\ set sourceDirectory=%sourceDirectory:~0,-1%

:: use third parameter for path to source products
set sourceDirectory2=%3
:: if sourceDirectory ends with '\' remove it
if %sourceDirectory2:~-1%==\ set sourceDirectory=%sourceDirectory2:~0,-1%


:: use third parameter for path to target products
set targetDirectory=%4
:: if targetDirectory ends with '\' remove it
if %targetDirectory:~-1%==\ set targetDirectory=%targetDirectory:~0,-1%


set targetFilePrefix=L1C_IDEP_


:: Create the target directory
::md %targetDirectory%
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:: Main processing
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:: double '%' in batch file and only a single '%' on command line
:: '/D' is for directories like Sentinel data. Remove '/D' when you open files.
for /D /R %sourceDirectory% %%F in (S2*.SAFE) do (
for /D /R %sourceDirectory2% %%N in (*.dim) do (
  echo
  :: '~fF' means abolute path of 'F'
  set sourceFile=%%~fF
  set sourceFile2=%%~fN
  echo sourceFile2=%sourceDirectory2%\%%~fN

  echo Processing !sourceFile!
  :: '~nF' means filename without extension of 'F'
  set targetFile=%targetDirectory%\%targetFilePrefix%%%~nF.dim
  set procCmd=%gptPath% %graphXmlPath% -e -t "!targetFile!" "!sourceFile!" "!sourceFile2!"
  call !procCmd! 
))

HERE IS THE .XML GRAPH FOR MERGING BANDS FROM DIFFERENT PRODUCTS AND ALSO RESAMPLE THE NEW PRODUCT IN THE END

<graph id="Graph">
  <version>1.0</version>
  <node id="mergeNode">
        <operator>Merge</operator>
        <sources>
            <masterProduct>${sourceProduct1}</masterProduct>
            <level2>${sourceProduct2}</level2>
        </sources>
        <parameters>
            <includes>
                <include>
                    <productId>masterProduct</productId>
                    <name>B1</name>
					<newName>B1</newName>
				</include>
				<include>
					<productId>masterProduct</productId>
					<name>B2</name>
					<newName>B2</newName>
                </include>
                <include>
                    <productId>level2</productId>
                    <name>B7</name>
					<newName>B7</newName>
                </include>
            </includes>
        </parameters>
  </node>
  <node id="Resample">
    <operator>Resample</operator>
    <sources>
      <sourceProduct refid="mergeNode"/>
    </sources>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <referenceBand/>
      <targetWidth/>
      <targetHeight/>
      <targetResolution>10</targetResolution>
      <upsampling>Nearest</upsampling>
      <downsampling>First</downsampling>
      <flagDownsampling>First</flagDownsampling>
      <resamplingPreset/>
      <bandResamplings/>
      <resampleOnPyramidLevels>true</resampleOnPyramidLevels>
    </parameters>
  </node>
</graph>

THE FINAL BATCH COMMAND TO CREATE A MERGED AND RESAMPLED PRODUCT

PATH_TO_BATCH_FILE\gpt_S2_merge.bat PATH_TO_MERGE_GRAPH\graph_merge_test_inverse.xml PATH_TO_FIRST_PRODUCT\S2L2A_brute 
PATH_TO_SECOND_PRODUCT\S2_Idepix 
PATH_TO_RESULTED_PRODUCT\S2_final\test

This whole workflow works with to .SAFE files in the configuration batch but not with a .SAFE and .DIM file. Anyone knows what the problem might be?