Skip directory if it doesnt exist

I provided Default directories to backup, but on some computers some directories doesnt exist and urbackup doesnt skip them but fail all computer backup

Cannot access directory to backup: “\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy42\scan”

Constructing of filelist of %ComputerName% failed: error - index error

Can it skip not existing directory, and backup folders that exist?

If you add the /optional the the configration like discribed here you won’t get the error: Save ALL : constructing of filelist failed (index/shadowcopy problem)