the name on the first line of thursday.txt, [C:\Backup\Windows\servicing\LCU\Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.1415.1.6\amd64_microsoft-windows-a..g-whatsnew.appxmain_31bf3856ad364e35_10.0.19041.746_none_57c8601baf818c0d\f\new360videossquare44x44logo.targetsize-16_altform-unplated_contrast-black.png" is 273 chars long.
I tried using
icacls FlenameIs273CharsLong.txt"
and got:
C:\Backup\Windows\servicing\LCU\Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.1415.1.6\amd64_microsoft-windows-a..g-whatsnew.appxmain_31bf3856ad364e35_10.0.19041.746_none_57c8601baf818c0d\f\new360videossquare44x44logo.targetsize-16_altform-unplated_contrast-black.png: The system cannot find the path specified.
Successfully processed 0 files; Failed processing 1 files
so then thinking the filename is too long I tried using SUBST
subst p: C:\Backup\Windows\servicing\LCU\Package_for_RollupFix~31bf3856ad364e35~amd64~~19041.1415.1.6\amd64_microsoft-windows-a..g-whatsnew.appxmain_31bf3856ad364e35_10.0.19041.746_none_57c8601baf818c0d\f"
icacls P:\new360videossquare44x44logo.targetsize-16_altform-unplated_contrast-black.png
and that one worked.
hence i think part of the problem is that you are not allowing for VeryLongFileNames.txt