Snap2stamps error in coregistration

Hello

I have a problem with snap2stamps process like below;

/data1/user/snap/snap2stamps-master/graphs/coreg_ifg_computation_subset.xml

#####################################################################

Coregistration and Interferogram computation started:

#####################################################################

/data1/user/snap/snap2stamps-master/split/20211106/20211106_IW2.dim
[1] Processing slave file :20211106_IW2.dim

SNAP STDOUT:INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: GDAL 2.2.3 found on system. JNI driver will be used.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Installed GDAL 2.2.3 set to be used by SNAP.
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
INFO: org.esa.s2tbx.dataio.gdal.GDALVersion: Installed GDAL 2.2.3 set to be used by SNAP.
Executing processing graph
INFO: org.hsqldb.persist.Logger: dataFileCache open start
Split product is expected.
done.

Error: [NodeId: Back-Geocoding] Split product is expected.

[1] Finished process in 3.75936412811 seconds.

###############################################################

Shift was also revised like below image;

image

I saw a Q&A that said snap 6.0 solved this problem.
However, I want this to be handled in SNAP 8.0.
Does anyone know how?

this indicates that the input was not processed by splitting_slaves.py before