MacOS 10.14-67GB Of System Storage?

I've used Daisy Disk (Pro Version) to clear most of the junk off my 2016 MBP W/ Touch Bar, However the ~60GB of "System Storage" Can't be deleted. Even tried the local snapshot deletion and there's nothing there from previous backups. Also double checked iPhone // iPad backups in iTunes and theres none there either. What could it be. Doesn't seem normal to have 60GB OF "System Storage"