3805467 - Phase KERNEL_EXE fails: 'No entry with key' for PAT file

SUM terminates in phase PREP_EXTENSION/SUBMOD_KERNEL_SCAN_TOOLCHK_PRP/SUBMOD_KERNEL_SCAN_TOOLCHK_NONSERIAL/KERNEL_EXE with below error message:

KERNELPRP.LOG

2 ETQ399 Unpacking archive '/<Download_folder>/igsexe_2-70008564.sar' to directory '/usr/sap/SID/SUM/abap/exe'.
3 ETQ120 20260911054100: PID 63316 execute '~/bin/SAPCAR -R ~/exe -tsf /<Download_folder>/igsexe_2-70008564.sar', output written to '/usr/sap/SID/SUM/abap/log/CAR.LOG'.
3 ETQ122 20260911054101: PID 63316 exited with status 0 '' 
3 ETQ120 20260911054101: PID 63317 execute '~/bin/SAPCAR -V -crl /<Download_folder>/crlbag.p7s -R ~/exe -xvf /<Download_folder>/igsexe_2-70008564.sar', output written to '/usr/sap/SID/SUM/abap/log/CAR.LOG'.
3 ETQ122 20260911054105: PID 63317 exited with status 0 ''
1 ETQ000 ==================================================
1 ETQ399 Executing action 'HANDLE_IGS'
1 ETQ399 Scanning for IGS/IGS helper archives in download area.
1EETQ399 Last generated error message is: No entry with key '/usr/sap/trans/EPS/in/I720020751259_0149849.PAT'
1EETQ204 Upgrade phase "KERNEL_EXE" terminated with severe errors

The <xxx>.PAT file reported in the error message is corrupted. You have checked and tried to re-download the IGS/IGS helper package but no luck. You want to know more on the issue file 'I720020751259_0149849.PAT'

*File 'I720020751259_0149849.PAT' is just an example here, it could happen on different  <xxx>.PAT file.

• SAP S/4HANA
• Upgrade tools for ABAP

SUM ABAP, KERNEL_EXE,No entry with key, EPS/in, PAT file, KERNELPRP.LOG, IGS helper archives, SPAM Load Packages, Support Package, kernel scan, HANDLE_IGS, Scanning for IGS/IGS helper archives in download area, 1EETQ399 , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem