Hi @Nije Bitno , did you tried to run this command with locally mounted iso ? would recommend to run scan health as well via DISM.
DISM /Online /Cleanup-Image /RestoreHealth /source:WIM:mounteddriveletter:\Sources\Install.wim:1 /LimitAccess.
someone already have had this issue before, so you might to check this if you have not checked it.
I hope this helps.